DRINKING WATER TREATMENT

Safety And Performance – The Keys To Water Management
Safety And Performance – The Keys To Water Management

The key aspects to any process measurement and control of water is the quality and safety of the end product, in this case drinking water.  There are three important factors that contribute to the quality of the product.  Those factors are the performance of the measurement and control instrumentation, the long term reliability of the measurement and the inherent safety to the consumer.

DRINKING WATER TREATMENT CASE STUDIES AND WHITE PAPERS

  • Aquatech Treats A Tertiary Effluent Wastewater Project In India To bridge the gap between demand and supply and to have reliable power supply to the capital city of Delhi, a 330 MW combined cycle Gas Turbine Power Project - Pragati Power Project (PPP) – was set up on a fast track basis. By Aquatech International Corporation
  • Case Study: Chemplast Chooses Aquatech’s HERO™ & ZLD The Chemplast Mettur plant uses the Cauvery River as their main fresh water source. A strong industrial growth in recent years has resulted in water scarcity in the region. Industries are also required to follow strict environmental norms for discharging effluents. The intent of a Waste Water Treatment Plant was to have complete treatment, recycle and reuse of the combined waste water streams to reduce intake from the Cauvery River while not discharging any liquid waste streams. By Aquatech International Corporation
  • Case Study: Continuous Monitoring Safeguards Malaysia’s Water Quality
    Case Study: Continuous Monitoring Safeguards Malaysia’s Water Quality

    Well on the way to becoming a total environmental monitoring solutions provider, Alam Sekitar Malaysia Sdn. Bhd. has applied its expertise in air and water quality monitoring to aid the Malaysian government in safeguarding the nation's water supply. A broad contract between ASMA and Malaysia's Department of the Environment partners the two entities in a highly efficient system that gathers long-term trend data on water quality while also maintaining an early warning system to alert officials and water treatment operators of pollution discharges in key reaches of the country's river system

  • Degas Separator Selected For Wichita Aquifer Storage And Recovery Project
    Degas Separator Selected For Wichita Aquifer Storage And Recovery Project

    In the 1990s, the City of Wichita, KS, developed a water supply plan that included creating a sustainable water supply through the year 2050. The key component of the plan is recharging the large aquifer that lies under the region with 100 MGD of water from the Little Arkansas River.

  • Utility  Enjoys More Than Seven Years of On‐Site Sodium Hypochlorite Production
    Utility Enjoys More Than Seven Years of On‐Site Sodium Hypochlorite Production

    “To me, Microclor® is the top of the line on‐site generation system on the market due to low maintenance and it being very user friendly.” Larry English, Water Quality Manager, Daphne Utilities. Read the full project profile to learn more.

  • Carbon Adsorption & Reactivation
    Carbon Adsorption & Reactivation

    Chemical, petrochemical, and oil-refining plants are process-intensive operations with regulatory requirements to protect the surrounding water and air from the effects of industrial pollution. These external demands are matched by equally compelling internal pressures to address product purification needs, find alternatives to utilizing costly fresh water in production processes, reduce the carbon footprint, and operate efficiently and profitably.

  • Water Supply Needs At Odds With Regional Demands To Lower Power Use
    Water Supply Needs At Odds With Regional Demands To Lower Power Use

    The shoreline of the Red Sea is a dazzling destination for tourists and locals to experience the beach and enjoy marine activities. In Egypt, the shoreline sprawls from the Suez Canal in the north, down to the southern part of the country bordering Sudan.

  • Monitoring Lead In School Drinking Water
    Monitoring Lead In School Drinking Water

    The EPA’s guidance documentation “3T’s for Reducing Lead in Drinking Water in Schools and Child Care Facilities: Training, Testing, Telling” recommends for schools to routinely test their facility’s drinking water, with a focus on lead levels in drinking water fountains.

  • Dealing With The Highs And Lows Of Flow
    Dealing With The Highs And Lows Of Flow

    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.

  • Clari-DAF Pretreatment System Reduces Chemical Consumption, Doubles Treatment Capacity
    Clari-DAF Pretreatment System Reduces Chemical Consumption, Doubles Treatment Capacity

    Together, two water treatment plants in Boulder, CO, have the capacity to treat 55 million gallons per day (MGD). When severe drought conditions restricted the source water supply of the Betasso WTP, the city decided to expand the capacity of the Boulder Reservoir Water Treatment Plant (WTP).

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DRINKING WATER TREATMENT APPLICATION NOTES

  • Accurately Measuring Network Leakage
    Accurately Measuring Network Leakage

    The pressures of supplying a growing global population mean that the world’s water supplies need to be managed more closely than ever.

  • Application Note: Real-Time Monitoring-Through Swell And High Water
    Application Note: Real-Time Monitoring-Through Swell And High Water Application article about water quality monitoring pontoon providing continuous data in the Burry Inlet, an estuary in Wales. By YSI
  • Application Note: YSI Real-Time Water Quality Monitoring And The IPSWATCH-EMPACT Program The Ipswich and Parker Rivers watersheds lie only a short distance north of Boston, MA. The first settlements in these watersheds began in the early 1600s. Since that time, residents have relied heavily on the natural resources of the Parker and Ipswich Rivers, their coastal estuaries and Plum Island Sound, which is known as the Great Marsh. This ecosystem has been designated and protected by the Commonwealth of Massachusetts as an Area of Critical Environmental Concern (ACEC).
  • VFD Energy Savings For Pumping Applications
    VFD Energy Savings For Pumping Applications

    In the early days of variable frequency drive(VFD) technology, the typical application was in process control for manufacturing synthetic fiber, steel bars, and aluminum foil.

  • Application Note: Continuous Monitoring Of Drinking Water Provides Assurance Of Safety
    Application Note: Continuous Monitoring Of Drinking Water Provides Assurance Of Safety A water utility in Ohio wanted to learn more about the variability of water quality parameters such as pH, ORP, turbidity, and chlorine. Previously, most of these parameters had been measured by spot sampling protocols with only a few measurements during a daily period. In order to more accurately assess the water variability, the utility used a YSI 6920DW Drinking Water Multiprobe
  • Chlorine Method For UKAS Accreditation And DWI Compliance At Welsh Water
    Chlorine Method For UKAS Accreditation And DWI Compliance At Welsh Water

    In 2013 the Drinking Water Inspectorate for England & Wales announced that water samples collected in England and Wales must be tested in a laboratory that meets specific standards for drinking water sampling and analysis. At the time of the new instruction, the chlorine method employed at the Welsh Water Bretton laboratory was unable to meet these requirements, notably for the prescribed limit of detection. This prompted the laboratory to investigate new analytical options for monitoring residual chlorine.

  • Application Note: Troubleshooting A pH Electrode

    Many factors affect performance of a pH electrode. When performance degrades, it is always a challenge for the analyst to identify the cause. Common troubleshooting procedures, which include evaluation of slope, electrode drift, time response, and accuracy, take considerable time. By Thermo Fisher Scientific

  • Flow Meter Enhances Chlorination System Performance For Municipal Water Department
    Flow Meter Enhances Chlorination System Performance For Municipal Water Department

    The water municipality at a mid-size city in the Western region of the U.S. serving a population of about180,000 people needed to address a chlorine disinfection system problem at one of its water treatment plants.

  • Comparison of UV vs. Sodium Hypochlorite (Fact Sheet)
    Comparison of UV vs. Sodium Hypochlorite (Fact Sheet)

    Hypochlorite has some significant environmental concerns associated with DBPs and residual toxicity.

  • Monitoring Nitrates In Drinking Water And Wastewater

    Nitrate is present in high levels in wastewater due in part to the high nitrates present in human sewage but also from some types of industrial effluent entering the municipal sewer system.

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DRINKING WATER TREATMENT PRODUCTS

Capital Controls® Series WP70CV3 Gas Feeders Capital Controls® Series WP70CV3 Gas Feeders

Easy to install, each Series WP70CV3 wall panel feeder is factory tested and needs no field adjustment prior to start-up. Eleven different flowmeter capacities ranging from 5 to 3000 PPD (100 g/h to 60 kg/h) provide versatility in meeting gas flow requirements.

Filtration: FA Series Air and Gas Filters Filtration: FA Series Air and Gas Filters
Shelco's FA Filtration Series are ideal for all types of gases and compressed air filtration.
Filtration: Pleated Paper Filter Series Filtration: Pleated Paper Filter Series
Shelco's Pleated Paper Series housings are the most versitile filtration units produced in the industry.
Hydraulics and Water Quality Program Hydraulics and Water Quality Program
WaterMax is a graphical computer program that simulates hydraulics and water quality in distribution systems
Water Quality Monitoring System Water Quality Monitoring System
The DataSonde 4a and MiniSonde 4a transmit or automatically log water quality parameters
Water Quality Modeling for Wasteload Allocations Water Quality Modeling for Wasteload Allocations
Covers practical applications of Wasteload Allocation an essential technique for maintaining water quality while coping with both point and non-point pollution sources.
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LATEST INSIGHTS ON DRINKING WATER TREATMENT

  •  Redefining 'Reliable Connections' For Water Distribution
    Redefining 'Reliable Connections' For Water Distribution

    Sometimes the relationship with a manufacturer begins and ends when a product is purchased. Regrettably, this can often leave customers high and dry when it comes to installation, operation, or troubleshooting.

  • A Filtration Solution For When Spring Has Sprung
    A Filtration Solution For When Spring Has Sprung

    This mobile filtration technology offers water treatment operations a chance to combat the runoff and solids brought in by seasonal ice melt.

  • Rounding Up The Water, Clean Energy, And Climate Bills In The 85th Texas Legislative Session
    Rounding Up The Water, Clean Energy, And Climate Bills In The 85th Texas Legislative Session

    We’re entering the home stretch of the 85th Session of the Texas Legislature.

  • Established Routine: How To Sample For Unknown Contaminants
    Established Routine: How To Sample For Unknown Contaminants

    The U.S. EPA has updated its sampling guidance for determining and fighting against unknown contaminants in drinking water. Here’s why routine preparation can be a utility’s best friend in case of emergency.

  • Solving For Arsenic Contamination
    Solving For Arsenic Contamination

    Few drinking water contaminants can boast the deadly reputation of arsenic. The substance is a well-known carcinogen associated with myriad health problems, and drinking water operations in certain regions must stay vigilant. To help in the fight against arsenic, Water Online spoke with Sahar Fathordoobadi, Application Engineer from AdEdge Technologies, an industry leader in arsenic removal solutions.

  • Achieving Ultrapure Water
    Achieving Ultrapure Water

    It may sound intimidating, but water that has been treated to “ultrapure” condition is more than necessary in many applications. This highly-cleansed product is a fundamental part of many industrial operations, from the medicine we need to get well to the power we rely on in our daily lives. But, as the name implies, it’s no small task to get average influent to the ultrapure level.

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DRINKING WATER TREATMENT VIDEOS

Video: Hanna Instruments 98703 Portable Turbidity Meter Video: Hanna Instruments 98703 Portable Turbidity Meter
The Hanna Instruments 98703 portable turbidity meter is perfect for stormwater testing.
Video: Monitoring Water Consumption Video: Monitoring Water Consumption
KROHNE's Joe Incontri discusses monitoring water consumption and the importance of accurate and reliable meters. Water savings means green savings.
Drought Forum Webinar: The Growing Demand For Re-Used And Brackish Water Drought Forum Webinar: The Growing Demand For Re-Used And Brackish Water

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.

Video: YSI Professional Plus Multiparameter Meter Video: YSI Professional Plus Multiparameter Meter
This video gives an overview of the features and benefits of the YSI Professional Plus, or Pro Plus, handheld multiparameter water quality instrument.
Science Safeguards Drinking Water From Harmful Algal Blooms

Toxins from harmful algal blooms are increasingly contaminating source waters, as well as the drinking water treatment facilities that source waters supply. EPA researchers are helping the treatment facilities find safe, cost effective ways to remove the toxins and keep your drinking water safe.

More From Drinking Water Treatment Videos

ABOUT DRINKING WATER TREATMENT

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.