Chemistries CLAROS                 800-227-4224

Municipal Wastewater Treatment

Wastewater Treatment Processes – Doing More With Less

Each wastewater treatment plant is unique, with its own capacity, layout, processes and equipment, and effluent limits. And each plant is faced with rising energy and chemical costs, and regulations that change or become more stringent over time.

At Hach ®, we embrace the challenge to continuously improve wastewater monitoring equipment and processes, including nutrient removal, aeration control, nitrification/denitrification, sludge dewatering, and other plant operations. Whether in primary, secondary, or tertiary treatment of wastewater, or in understanding solids handling, regulations, or the promise of a Water Intelligence System such as Claros TM , Hach innovations and new applications can help you stay in compliance and reduce operating costs, doing more with less - with the confidence that your plant is running smoothly. 

Wastewater technician, an operator who ensures the testing and treatment of wastewater at a municipal wastewater facility. From grab samples to lab and process optimization, the wastewater plant staff is responsible for monitoring organics, contaminants, pH, total suspended solids, and other parameters indicating water quality from wastewater influent to treated water effluent. Treated water must comply with permit limits for all parameters.

Wastewater Treatment Overview

WW-diagram-MAIN-no-buttons-980.jpg


Collection Systems

Modern sanitary sewer collections systems move wastewater through a series of pipes from residential buildings, businesses, and industrial sites to wastewater treatment facilities for processing and discharge. Some older systems know as combined sewer systems also carry stormwater runoff in addition to the wastewater from residential and commercial sources.

The wastewater flows through underground sewer mains, most often by gravity, but sometimes assisted by pumps situated at lift stations. Depending on the topography of an area, these force mains vary in length up to a few miles long. Interceptors are locations where two lines meet and flow into a larger pipe, and can include large chambers accessible by manholes.

WW-diagram-secondary-panel-Collections-Systems.jpg

Preliminary and Primary Treatment

Preliminary treatment is typically the first process within the treatment plant, and consists of screening and de-gritting. Screening is the process of removing trash, rags, and other debris by passing the water through a mechanical screen or rotating drum. Grit is removed by reducing the velocity of the wastewater so that heavier inorganic particles like pebbles and sand can settle to the bottom and be removed via gravity. The grit and screenings are washed and compacted before being collected in a dumpster. These preliminary processes are very important for modern water resource recovery facilities, as grit and debris can irreparably harm downstream processes including primary clarifier mechanisms, aeration diffusers, and membranes.

During primary treatment, primary clarifiers allow organic solids to settle through gravity, while fats, oils and greases are allowed to float to the surface. The settled solids are referred to as primary sludge, and often are thickened in a downstream process before delivery into an anaerobic digester. The floating fat, oil and grease is collected from the surface and are typically added directly to the anaerobic digester. A typical primary clarifier will remove approximately 70% of the solids and 45% of the Biochemical Oxygen Demand from the screened wastewater. Modern facilities that operate enhanced biological nutrient removal processes often extract or ferment the carbon in the primary sludge and dose this side stream into anaerobic or anoxic processes downstream, as a food source for the respective biology.

WW-diagram-secondary-panel-Primary-Treatment-250.jpg

Process Step

Plant Inlet (Raw Influent)

Do you consistently monitor the relevant parameters in your influent to adjust your plant’s processes accordingly?

Do you have good transparency on the changes at your influent?

Hach offers solutions to your Primary Treatment needs. Explore the following solutions:

Parameters

Ammonia

 Process: EZ3501, EZ4005

 Lab: TNTPlus

Conductivity

 Process: 3798 sc

 Lab: HQd with CDC401 sensor

Dissolved Solids

 Process: 3700 sc

 Lab: HQd with CDC401 sensor

Flow

 Process: Flo-DAR, Flo-Tote 3, Submerged AV

 Lab: n/a

TOC, TP, TN

 Process: Biotector B7000, UVAS Plus sc (TOC only)

 Lab: TNTPlus

Multiple (TOC, P, TP, TN, TKN, COD)

 Process: n/a

 Lab: TNTPlus

pH

 Process: phD sc, Combination ph

 Lab: HQd with PCH101 sensor

Suspended Solids

 Process: TSS sc, Solitax sc,

 Lab: TSS Portable, Gravimetric Test

Toxicity

 Process: EZ1000,

 Lab: n/a

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950



Claros Mobile Sensor Management enabled device

Sand Trap / Grit Chamber

Can you protect your treatment plant from industrial dischargers and monitor shock loads?

Hach offers solutions to challenges in your Sand Trap / Grit Chamber. Explore the following solutions:

Parameters

SAC

 Process: UVAS Plus sc,

 Lab:

Process Controllers

SC200
SC1000
SC4200



Claros Mobile Sensor Management enabled device

Influent to Primary Clarifier

Do you have clarity on your N, P and C levels for the next treatment steps?

Hach offers solutions to challenges in your influent to your Primary Clarifier. Explore the following solutions:

Parameters

COD

 Process: EZ7000 Series,

 Lab: TNTPlus

Dissolved Solids

 Process: 3700 sc

 Lab: HQd with CDC401 sensor

Multiple (TOC, P TP, TN, TKN, COD)

 Process: Biotector B7000 (TOC, TN, TP only) , UVAS Plus sc (TOC Only)

 Lab: TNTPlus

Orthophosphate

 Process: Phosphax sc

 Lab: TNTPlus

pH

 Process: phD sc, Combination ph

 Lab: HQd with PCH101 sensor

Suspended Solids

 Process: TSS sc, Solitax sc,

 Lab: TSS Portable, Gravimetric Test

Process Controllers

SC200
SC1000
SC4200



Claros Mobile Sensor Management enabled device

Primary Clarifier

Do you optimize your sludge Draw-Off (Sludge Removal) to your Biodigestor?

Can you accurately monitor your sludge levels?

Hach offers solutions to challenges in your Primary Clarifier. Explore the following solutions:

Parameters

Sludge Level

 Process: Sonatax sc

 Lab Sludge Judge

Process Controllers

SC200
SC1000
SC4200



Claros Mobile Sensor Management enabled device

Primary Treatment Effluent

Is your primary clarification operating adequately?

Are you providing optimal levels of N, P, and C for your secondary clarifier?

Are your pH and Alkalinity levels appropriate, not to damage the bacteria in your secondary treatment?

Hach offers solutions to challenges in your Primary Treatment Effluent. Explore the following solutions:

Parameters

Alkalinity

 Process: EZ4000 Series,

 Lab AT1000 Alkalinity

Ammonium

 Process: Amtax sc, A-ISE sc, AN-ISE sc

 Lab: TNTPlus

BOD

 Process: n/a

 Lab: HQd with LBOD sensor,

COD

 Process: EZ7000 Series,

 Lab: TNTPlus

Conductivity

 Process: 3700 Series

 Lab: HQd with CDC401 sensor

pH

 Process: phD sc, Combination ph

 Lab: HQd with PCH101 sensor

SAC

 Process: UVAS Plus sc,

 Lab:

Suspended Solids

 Process: TSS sc, Solitax sc,

 Lab: TSS Portable, Gravimetric Test

Multiple (TOC, P, TP, TN, TKN, COD, Metals)

 Process: Biotector B7000 (TOC, TN, TP only)

 Lab: TNTPlus

Orthophosphate

 Process: Phosphax sc

 Lab: TNTPlus

Oxygen Uptake Rate

 Process: n/a

 Lab: HQd with LDO Sensor

Toxicity

 Process: EZ7900

 Lab: n/a

Volatile Acids

 Process: EZ7200

 Lab: AT1000 FOS/TAC

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950



Claros Mobile Sensor Management enabled device


Secondary treatment

Secondary treatment removes the soluble organic matter, nutrients such as nitrogen and phosphorus, and most of the suspended solids that escape primary treatment. Most often, biological processes are used in which microbes metabolize organic compounds and nutrients to grow and reproduce. The two most common biological secondary treatment processes are attached growth and suspended growth systems. A suspended growth process fosters the growth of suspended microorganism flocs from individual organisms already present in the wastewater and in the return activated sludge. The flocs contain organisms that can remove the pollutants through aerobic, anoxic, and anaerobic environments. Once the pollutants are removed, the flocs are sent to a secondary clarification process where they separate from the water via gravity. A portion of sludge in the bottom of the secondary clarifier is then directed back upstream to blend with the primary effluent (Return Activated Sludge) to create mixed liquor. The remainder of the sludge is removed from the process (Waste Activated Sludge) to create the ideal ecology of microorganisms. Attached growth systems rely on the microorganisms to attach to a media, and create a biofilm. The settled sewage is either mixed or sprinkled over the biofilm coated media where the microorganisms remove the pollutants. Like the suspended growth process, biofilm fragments and suspended flocs are sent to a secondary clarifier for separation where sludge is recycled and wasted and clean water is discharged to the next process.

For biological treatment to function efficiently, organisms require nutrients in a balanced ratio, including carbon, nitrogen, and phosphorus (referenced as C:N:P), as well as trace elements including iron, copper, zinc, nickel, manganese, potassium, sulfur, and other components which are typically present in wastewater. The commonly accepted C:N:P Ratio is 100:5:1, although some facilities thrive outside of this ratio, while others experience polysaccharide slime formation or filamentous bacteria growth that inhibit the biology and settling in the secondary clarifier.

Multiple biological processes can be employed to complete secondary treatment, including plug flow aeration basins, complete mix aeration tanks, sequencing batch reactors, oxidation ditches, trickling filters, moving bed biological reactors, integrated fixed film activated sludge, and others.

Biological Nutrient Removal (BNR) alters the environment of the microorganisms to remove nitrogen and phosphorus from the water. A BNR process consists of anaerobic (no oxygen or nitrate), anoxic (no oxygen, nitrate is present), and aerobic (oxygen present) stages, during which the water is moved through a series of chambers to perform various biological functions.

Chemical treatment processes can also be used, such as the chemical removal of phosphorus. By introducing a chemical precipitant to within the aeration basin and clarifiers, phosphorus is removed by flocculation, binding into insoluble compounds that settle out and can be removed as sludge.

WW-diagram-secondary-panel-Secondary-Treatment-250.jpg
Read More

Application Specific Solutions


Nitrogen Removal:

Whether you are facing new regulations or trying to become more efficient, we can provide solutions for monitoring nitrate, dissolved oxygen, and other parameters that can save energy and chemical costs while optimizing nitrification and denitrification in your facility.

Learn more with Hach’s Nitrogen Removal Guide.

Phosphorus Removal:

Whether you need a solution for chemical or energy savings, we can provide monitoring solutions that can save costs while optimizing your Phosphorus removal.

Learn more with Hach’s Phosphorus Removal Guide.

Aeration Control:

If you are interested in lowering energy and maintenance costs, we have products with innovative luminescent technology to monitor dissolved oxygen and optimize your aeration control.

Learn more with Hach’s Aeration Control Guide.

Dissolved Air Flotation (DAF) Optimization:

Does your facility dose chemical based on flow rate? Typical facilities do, but this can lead to wasted chemicals, increased hauling costs, and potentially fines! Our suspended solids sensors can help you dose based on solids concentration, optimizing your chemical use and saving you money.

Learn more with Hach’s Dissolved Air Flotation (DAF) Optimization Guide. Read Less


Process Step

Nitrogen Removal

Is your process for Carbon and Nitrogen removal optimized?

Do you control your Dissolved Oxygen levels manually, using a fixed set point, or based solely on flow rates?

Do you face significant electricity costs due to manual or fixed aeration controls?

Several technologies are used for Biological Nitrogen removal in wastewater treatment plants. From continuously-aerated treatment systems, to intermittent operated plants, sequencing batch reactors, and more, nitrogen elimination is often the central process in the wastewater treatment plants. While variations exist, this process usually requires real-time measurement of ammonium and nitrate for adjustment of DO concentration and optimization of nitrification and denitrification times. Hach offers solutions for your nitrogen removal needs. Explore the following solutions:

Parameters

Alkalinity

 Process: EZ4000 Series,

 Lab AT1000 Alkalinity

Ammonium

 Process: Amtax sc, A-ISE sc, AN-ISE sc

 Lab: TNTPlus, HQd with Ammonia sensor

COD

 Process: EZ7000 Series

 Lab: TNTPlus

Dissolved Oxygen

 Process: LDO2 sc

 Lab: HQd with LDO Sensor

Nitrate

 Process: EZ1000 Series

 Lab: TNTPlus

Nitrite

 Process: EZ1000 Series

 Lab: TNTPlus

pH

 Process: phD sc, Combination ph

 Lab: HQd with PHC101 sensor

Sludge Volume and Sludge Volume Index

 Process: n/a

 Lab: Settlometer

Suspended Solids

 Process: TSS sc, Solitax sc,

 Lab: TSS Portable, Gravimetric Test

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950



Claros Mobile Sensor Management enabled device

Phosphorus Removal

Is your Phosphorous removal process optimized?

Do you control the chemical dosing manually, using a fixed dosing amount or based solely on flow rates?

Do you face significant chemical costs due to manual or fixed dosing of chemicals?

Chemical phosphorus removal is a critical step in wastewater treatment. It is usually done by adjusting chemical dosing of precipitants, based on phosphate concentration and flow, allowing for consistent effluent phosphorus values. Hach offers solutions for your Phosphorous removal needs. Our solutions range from complete optimization & control of the Phosphorous removal process with Claros Process Management to instruments that cater to the specific parameters you need.

Parameters

Orthophosphate

 Process: Phosphax sc

 Lab: TNTPlus

Sludge Volume and Sludge Volume Index

 Process: n/a

 Lab: Settlometer

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950



Claros Mobile Sensor Management enabled device

Secondary Clarifier

Do you optimize your sludge Draw-Off (Sludge Removal) to your Biodigestor?

Hach offers solutions for your clarification needs. Explore the following solutions:

Parameters

Sludge Level

 Process: Sonatax sc

 Lab Sludge Judge

Process Controllers

SC200
SC1000
SC4200



Claros Mobile Sensor Management enabled device


Tertiary Treatment

In tertiary treatment, techniques such as filtration, disinfection, carbon absorption, and other processes are used to remove the remaining organic load, suspended or dissolved solids, pathogens and heavy metals that pass through other treatment processes. Also called effluent polishing, tertiary treatment raises the effluent quality to the level suitable to its intended use, whether for discharge into lakes, rivers, or oceans, reuse as non-crop irrigation (parks, golf courses, greenways, etc), groundwater recharge, or in certain cases, as influent to drinking water plants. Wastewater plant effluent must be monitored to ensure compliance with effluent permit limits, which vary based on jurisdiction and country.

WW-diagram-secondary-panel-Tertiary-Treatment-250.jpg

Process Step

Disinfection

Is your disinfection process working optimally?

Hach offers solutions to your disinfection needs. Explore the following solutions:

Parameters

UV Transmittance

 Process: UVAS sc

 Lab

Total Chlorine

 Process: CL17

 Lab

Monochloramine

 Process: 5500 sc Ammonia Monochloramine Analyzer

 Lab TNTPlus

Process Controllers

SC200
SC1000
SC4200



Claros Mobile Sensor Management enabled device

Filtration

Are your filters working at maximum efficiency?

Hach offers solutions for your clarification needs. Explore the following solutions:

Parameters

Turbidity

 Process: TU5300 sc, Solitax sc

 Lab TL2300

Process Controllers

SC200
SC1000
SC4200



Claros Mobile Sensor Management enabled device


Solids Handling

The method for handling the sludge removed from the process depends on the volume of solids as well as other site-specific conditions. Aerobic digestion is often used by facilities less than eight million gallons per day of inflow. Waste Activated Sludge and if present, Primary Sludge, are added to an aerated reactor where microorganisms feast on the organics and microorganisms present in the sludge to reduce the volatile solids content and the overall mass of sludge. Anaerobic digestion is typically used at facilities greater than eight million gallons per day of inflow, and involves the use of sealed reactors to create an anaerobic environment for different organisms to feast on the organics and microorganisms in the sludge through the processes of acidogenesis and methanogenesis. The methane formed by anaerobic digestion can be used to fuel boilers to heat the digester, flared, or cleaned and repurposed as a green energy source.

Thickening involves concentrating the sludge by removing a percentage of the liquid portion by adding polymer compounds, and is often employed before anaerobic digestion. Dewatering with belt presses, centrifuges or other means further concentrates sludge into a cake. The cake can be further dried, or simply disposed through land application or landfills.

WW-diagram-secondary-panel-Solids-Handling-250.jpg

Applications

Sludge Thickening

Is your sludge thickened to an optimal level right now? How do you know?

How are you optimizing your sludge thickening system and chemical use?

How are you monitoring the impact of your thickener side stream?

Sludge thickening is a critical step for most biosolids management plans. It is the first step for reducing the sludge volume by removing free water. Sub-optimal sludge thickening has a large economic impact on the disposal costs. Solids carryover from centrate or filtrate can cause unnecessary pressure when returning the side stream to the beginning of the plant. Let us help you find the best solution for improving your visibility into your sludge thickening process.

Products

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950



Claros Mobile Sensor Management enabled device

Biosolids Dewatering

Is your sludge dewatered to an optimal level right now? How do you know?

How are you optimizing your sludge dewatering system and chemical use?

How are you monitoring the impact of your dewatering side stream?

Sludge dewatering is a critical step for most biosolids management plans. It is typically the final step in water/solids separation for the reduction in sludge volume before disposal or drying. Sub-optimal sludge dewatering has a large economic impact on the disposal costs. Solids carryover from centrate or filtrate can cause unnecessary pressure when returning the side stream to the beginning of the plant. Let us help you find the best solution for improving your visibility into your sludge dewatering process.

Products

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950



Claros Mobile Sensor Management enabled device

Sludge Digestion

Are your digesters operating at maximum efficiency?

How often do you monitor conditions of your digesters to ensure optimal performance?

Water resource recovery systems face the challenge of managing the biosolids generated as a part of the water recovery process. Digesters, both aerobic and anaerobic, are used to reduce the mass of biosolids and, in many cases, used to recover additional natural resources, such as biogas and nutrients. Whatever your specific needs are, let us help you find the best technology available.

Products

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950



Claros Mobile Sensor Management enabled device


Water Intelligence

A growing field of expertise within the wastewater treatment industry, Water Intelligence Systems use digital technologies, advanced sensors, controllers, and algorithms to allow plant operators to increase efficiencies leading to overall cost savings in running the plant.

Claros™, the Water Intelligence System from Hach, integrates all plant data sources, including system data, device data, and manually-collected data, driving decisions to maximize efficiency and cost savings.

With these systems, data on flow rate, water composition, dissolved-oxygen, nutrient levels, and other factors are more easily tracked and verified. This leads to more responsive treatment options, automation capabilities, and data visualization and report generation.

Using data-driven insights into water quality, flow rate, and other factors, operators can reduce overtreatment (chemicals as well as aeration blower run time) while knowing their plant will remain within compliance limits.

As regulations become more stringent and plants need to find cost-savings, Water Intelligence Systems such as Claros will become more important and widely adopted. And with the Hach’s growing suite of Claros-Enabled sensors, controllers, devices, Process Management systems, and lab equipment, operators can configure a system that fits the unique requirements of any plant.

Interested in learning more? Visit hach.com/claros.


Regulations


Regulations and permit limits vary from region to region and country to country. Generally, target limits are established by the acting authority, and plants measure and report to demonstrate compliance with established limits. In this way, important parameters that indicate water quality and environmental and health standards are monitored and maintained, ensuring the continued health and safety of the populations being served.

For information regarding regulations in the US: https://www.epa.gov/npdes

For information regarding regulations in the EU: https://www.eea.europa.eu/themes/water/water-management

For information regarding regulations in the China: http://english.gov.cn/policies/latest_releases/2015/04/16/content_281475090170164.htm


Effluent & Reuse


While effluent from wastewater treatment facilities is commonly discharged to the environment in rivers, oceans, or other bodies of water, there are a variety of other options for discharge. These include agricultural irrigation; use in parks and recreational facilities (golf courses and sports field irrigation, snow making); wildlife habitat or aquifer/wetland/marsh recharging; industrial uses such as process water; street cleaning; or direct potable reuse where water is sent to a drinking water plant for further treatment.

Applications

Phosphorus

Do you wish you had a better handle on your phosphorus removal?

How do you monitor the phosphorus in your effluent? Do you trust the results?

The demand to meet effluent phosphorus requirements is growing for water resource recovery and reuse facilities. Continuous online analyzers or EPA equivalent laboratory tests help ensure you have maximum visibility of your system performance and will help prevent costly or embarrassing upsets and violations. Here you can find many flexible solutions that span the range for quick spot testing to continuous online monitoring to EPA approved methods for both orthophosphate and total phosphorus.

Products

Spectrophotometers

Phosphate Analyzers

Phosphax sc Family
EZ1000 Series

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950

US EPA Compliant Lab Methods


Orthophosphate

Low Range
High Range
Ultra-High Range

Total Phosphorus

Low Range
High Range
Ultra-High Range



Claros Mobile Sensor Management enabled device

Nitrogen

Are you confident you are meeting your effluent nutrient targets right now?

Are you facing a challenging Ammonia or Total Nitrogen regulation?

The demand to meet effluent Total Nitrogen, Ammonia, and/or nitrate requirements is growing for water resource recovery and reuse facilities. Continuous online analyzers or EPA equivalent laboratory tests help ensure you have maximum visibility of your system performance and will help prevent costly or embarrassing upsets and violations. Here you can find robust laboratory and real-time monitoring solutions for nitrogen in all its relevant forms.

Products

Spectrophotometers

Nitrate Sensors

Nitratax sc

Ammonium Analyzers

Amtax sc

Total Nitrogen Analyzers

EZ7750 Analyzer, EZ760x (TN + TP)

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950

US EPA Compliant Lab Methods


Ammonium as Nitrogen

Ultra-Low Range
Low Range
High Range
Ultra-High Range

Nitrate as Nitrogen

Low Range
High Range

Nitrite as Nitrogen

Low Range
High Range

Total Nitrogen

Simplified TKN



Claros Mobile Sensor Management enabled device

Organics (BOD, TOC, COD)

Are you confident you are meeting your effluent BOD permit right now?

All water resource recovery facilities are required to reduce the number of organics in their effluent. Whether the goal is regulatory compliance reporting or real-time monitoring of a particularly critical treatment process, we have flexible solutions worth exploring.

Products

Lab/Portable Meters

HQd Portable/Benchtop with LBOD probe

Spectrophotometers

TOC Analyzers

Biotector B7000
EZ1000 Family

Organics Load

UVAS plus sc Sensor

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950

US EPA Compliant Lab Methods


BOD

Method 8043

TOC

Method TNT821

Method TNT822



Claros Mobile Sensor Management enabled device

Solids/Turbidity

Are you confident you are meeting your effluent turbidity or solids targets right now?

Does your reuse application require accurate and consistent turbidity monitoring?

All water resource recovery facilities are required to reduce the amount of total suspended solids in their effluent. Many facilities also doing beneficial reuse of their effluent stream are also required to monitor turbidity. Whether the goal is regulatory compliance reporting or real-time monitoring of a particularly critical treatment process, we have flexible solutions worth exploring.

Products

Total Suspended Solids / Turbidity

TSS sc
TSS Portable
Solitax sc probe

Conductivity

HQd Portable Meter with Conductivity Sensor

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950



Claros Mobile Sensor Management enabled device

Oil and Grease

Has your process removed enough oil and grease to comply with regulations or downstream reuse requirements?

Water resource recovery facilities face the challenge of reducing fats, oils, and greases prior to discharge or sensitive downstream reuse applications. Whether you are looking for quick laboratory methods or online monitoring solutions to help gain visibility to a critical process, let us help you find the best solution.

Products

UV Flourescence Probe

FP360 sc

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950

US EPA Compliant Lab Methods


Method 10056

Other Lab Methods

Xenosep or Hexane Extractable Method
Xenosep SPE



Claros Mobile Sensor Management enabled device

pH

Are you confident you are meeting your effluent pH target right now?

How do you monitor your effluent pH? Are you confident in the measurement?

Accurate effluent pH is required to protect the downstream needs, whether it is discharging into the environment or being captured for beneficial reuse. Ensuring the best data is being used for your needs requires the best equipment. Let us help you find the best solution for your pH measurement needs.

Products

Online pH Sensors

pHD sc

Meters and Probes

HQd Portable or Lab Meter with PHC101

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950

US EPA Compliant Lab Methods

Method 8156



Claros Mobile Sensor Management enabled device

Dissolved Oxygen

Are you confident you are meeting your effluent Dissolved Oxygen target right now?

How do you monitor your effluent Dissolved Oxygen? Are you confident in the measurement?

Accurate effluent Dissolved Oxygen is required to protect the downstream needs, whether it is discharging into the environment or being captured for beneficial reuse. Ensuring the best data is being used for your needs requires the best equipment. Let us help you find the best solution for your DO measurement needs.



Claros Mobile Sensor Management enabled device

Disinfection

Are you confident you are meeting your effluent disinfection requirements right now?

Does your reuse application require consistent disinfection? How do you ensure compliance?

Water resource recovery facilities often face disinfection requirements for their effluent and reuse streams. Whether your site is using UV irradiation, Chlorine oxidation (in any form), or something else, Hach has a flexible suite of laboratory and online monitoring solutions. Let us help you find the best solution for your disinfection goals.

Products

Spectrophotometers

Automatic Titrators

AT1000

Online Chlorine Analyzers

CL17 Colorimetric Chlorine Analyzer
CL10 sc Amperometric Chlorine Analyzer

Digital UV Probes

UVAS sc

Process Controllers

SC200
SC1000
SC4200

Samplers

AS950



Claros Mobile Sensor Management enabled device

Microbiology

Does your effluent contain the right microbiology?

Effluent microbial counts are key parameters that help ensure water discharging from Water resource recovery facilities is safe for our environment and ourselves. Let us help you find the best solution for your specific goals.

Products

Samplers

AS950

US EPA Compliant Lab Methods


Method 8074



Claros Mobile Sensor Management enabled device