Retrofit Membrane System Treats High Turbidity Water

The City of Wilmington, Delaware is situated where the Christina River and the Brandywine Creek flow into the Delaware River.


  • Upcoming Standards And Compliance Regarding Lead-Free Requirements
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    Badger Meter has and will continue to manufacture and provide products that meet the requirements of current and future lead-free standards. This white paper discusses these changing industry needs both as they relate to Badger Meter products and to water utilities in general.

  • Decoding Ozone Disinfection Revisited
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    Late last year we published an extremely popular article on understanding the ozone disinfection process. Based on the response, we’ve updated this year’s article with a bit more information to illustrate how powerful these simple tools can be to operations staff.

  • Two-Way Fixed Network Helps Texas Community Become ‘City Of The Future’
    Two-Way Fixed Network Helps Texas Community Become ‘City Of The Future’

    In January 2014, the city of Meadows Place, Texas, became the first city in Fort Bend County to fully convert to an Advanced Metering Infrastructure (AMI) fixed-network system. At the same time, the city also implemented a complete meter change-out for its 1,600 customers. Both projects represent large initiatives for the self-proclaimed “little city” with a population of 4,600 citizens.

  • CleanFlo™ Monoscreen® Case Study
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    When the polar bears at the Brookfield Zoo were introduced to their new habitats at the Great Bear Wilderness, they had no idea how much more fulfilling their life would become.

  • The Basics Of Disinfection
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    From utility water to wastewater, whether used in industrial processes or for drinking, disinfection plays a prominent role in providing safe and useable water. Water free from pathogens and other microorganisms ensures processes run efficiently and people are kept safe from disease. By Harland R Pond, Business Development Manager – Water Treatment

  • Case Study: Aquatech Supplies 40,000 m3/day SWRO In Saudi Arabia
    Case Study: Aquatech Supplies 40,000 m3/day SWRO In Saudi Arabia Saudi Arabia General Authority of Civil Aviation (GACA) is responsible for constructing, managing, operating, and maintaining airports and air navigation infrastructure in Saudi Arabia. By Aquatech International Corporation
  • Dealing With The Highs And Lows Of Flow
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    In February of 2014, due to severe drought conditions, the Federal Bureau of Reclamation informed central California farmers that they would receive no irrigation water from the lakes, canals and reservoirs under the Bureau’s control.

  • Online TOC Analysis In The Drinking Water Treatment Process
    Online TOC Analysis In The Drinking Water Treatment Process

    In 1974 the Congress of the United States passed Public Law 93-523; the Safe Drinking Water Act (SDWA) to protect public health by regulating the nation’s drinking water supply and protecting sources of drinking water. The SDWA first went into effect on June 24, 1977 and has been amended multiple times.

  • How To Control Denitrification Using Online Nitrate Sensors
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    Nutrient removal from wastewater is an increasingly common requirement for water resource recovery facilities (WRRF).  Nitrogen and phosphorus are the nutrients being targeted.

  • Niederzeuzheim WWTP Case Study
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More Drinking Water Treatment Application Notes


WEDECO MiPRO Advanced Oxidation Solutions
WEDECO MiPRO Advanced Oxidation Solutions

Xylem’s WEDECO MiPRO™ solution is based on three key components: Ozone, Hydrogen Peroxide, and UV light. By combining these technologies, flexible oxidation solutions for individual micropollutant requirements are available.

HQ440d Digital Benchtop Meter Package With LBOD101 Dissolved Oxygen Probe For BOD Measurement
HQ440d Digital Benchtop Meter Package With LBOD101 Dissolved Oxygen Probe For BOD Measurement

Designed for water quality experts, the Hach HQ440d benchtop meter is an advanced laboratory meter that takes the guesswork out of measurements.


In the OPTISYS CL 1100, free chlorine is measured by a sensor with a three-electrode design, which has very long lifespans, thanks to the patented ASR cleaning system. Measurement takes place in a Plexiglas assembly, which is ideal for visual inspection and can be optionally expanded with pH measurement, in order to guarantee measurement accuracy with strongly deviating pH values.

AQUATek 100 Waters-Only Autosampler
AQUATek 100 Waters-Only Autosampler

The AQUATek 100 is a purge and trap autosampler that automates the sample preparation steps for the analysis of liquid samples utilizing a fixed volume sample loop filled using a pressurization gas. Two independent volume programmable internal standards are then added to the sample and the entire aliquot is transferred to the Purge and Trap for compound concentration and subsequent separation and detection using a GC/GC-MS quantification system.

AM-TBR Turbidimeter
AM-TBR Turbidimeter

The AM-TBR was designed to be cost effective to purchase and even more cost effective to maintain. The turbidimeter is modular to make servicing and cleaning quick and easy. The compact sample volume of 30 ml means that you will go through less calibration solution over time.

TOC Drinking Water Analysis
TOC Drinking Water Analysis

Teledyne Tekmar has been the market leader in environmental and drinking water testing for decades, having invented many of the instrumental technologies used in today’s lab.  From TOC drinking water analysis to EPA compendium methods for air, soil and water, Tekmar has the right instrument for your application.

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TrojanUVTorrent™ Drinking Water UV Disinfection System (Video)
TrojanUVTorrent™ Drinking Water UV Disinfection System (Video)

The TrojanUVTorrent™ is the solution for large-scale drinking water facilities in need of revolutionary UV disinfection technology.

Building Water Confidence With UV Disinfection (Video)
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TrojanUV is dedicated to providing the world with more efficient, environmentally-friendly water treatment solutions. This video shows how we’re helping municipalities deliver water confidence to their communities.

Drought Forum Webinar: The Growing Demand For Re-Used And Brackish Water
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The Western Governors' Drought Forum webinar “Once Marginal, Now Crucial: The Growing Demand for Re-used, Produced, and Brackish Water” explores the technological and regulatory obstacles to utilizing re-used, produced, and brackish water.

The New IQ SensorNet Product Video
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The IQ SensorNet wastewater treatment process monitor is a powerful, modular system designed to be flexible enough to place anywhere in your wastewater treatment system and add to it at anytime.

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Drinking Water Treatment involves the removal of pathogens and other contaminants from source water in order to make it safe for humans to consume. Treatment of public drinking water is mandated by the Environmental Protection Agency (EPA) in the U.S. Common examples of contaminants that need to be treated and removed from water before it is considered potable are microorganisms, disinfectants, disinfection byproducts, inorganic chemicals, organic chemicals and radionuclides.

There are a variety of technologies and processes that can be used to decontaminate or treat water in a drinking water treatment plant before the clean water is pumped into the water distribution system for consumption.

The first stage in treating drinking water is often called pretreatment and involves screens to remove large debris and objects from the water supply. Aeration can also be used in the pretreatment phase. By mixing air and water, unwanted gases and minerals are removed and the water improves in color, taste and odor.

The second stage in the drinking water treatment process involves coagulation and flocculation. A coagulating agent is added to the water which causes suspended particles to stick together into clumps of material called floc. In sedimentation basins, the heavier floc separates from the water supply and sinks to form sludge, allowing the less turbid water to continue through the process.

During the filtration stage, smaller particles not removed by flocculation are removed from the treated water by running the water through a series of filters. Filter media can include sand, granulated carbon or manufactured membranes. Filtration using reverse osmosis membranes is a critical component of removing salt particles where desalination is being used to treat brackish water or seawater into drinking water.

Following filtration, the water is disinfected to kill or disable any microbes or viruses that could make the consumer sick. The most traditional disinfection method for treating drinking water uses chlorine or chloramines. However, new drinking water disinfection methods are constantly coming to market. Two disinfection methods that have been gaining traction use ozone and ultra-violet (UV) light to disinfect the water supply.