DRINKING WATER TREATMENT

Using Granular Activated Carbon To Meet DBP Regulations

The Roche Harbor Water Treatment Plant is located on the northwest side of San Juan Island in San Juan County, Washington state. Although a significant part of the land in the county is privately owned, the watersheds there provide a public benefit for both residents and visitors.  San Juan Island’s economy is tourist-driven; the island was voted #2 on the New York Times list of “41 Places to go in 2011.” Its marina has been a top boating destination for more than fifty years. Incorporated in 1886, the community has seen slow but steady population growth in recent decades. Roche Harbor Water System Inc. has been in operation since 1968 when PVC piping replaced the island’s existing wooden pipe system.

DRINKING WATER TREATMENT CASE STUDIES AND WHITE PAPERS

  • Cyanide Analysis Of Wastewater Samples From FCC And Hydrocracking Operations
    Cyanide Analysis Of Wastewater Samples From FCC And Hydrocracking Operations

    Fluid catalytic cracking (FCC) is a major unit operation in refineries around the world. FCC is used to convert lowvalue, high molecular weight feedstocks such as shale oil, tar sands oil, and coker gas oils into lighter, high-value products by “cracking” C-C bonds.

  • Preventative Service, Maintenance Helps Protect Technology Investment, Water Resources The need to conserve water is a common concern throughout the world. Whether it is due to cost of water, availability of water, or environmental discharge concerns, the importance of water is a major focal point, both in the public and private sector. By Siemens Industry, Inc. - Water Technologies
  • Town Of Hillsborough Relies On Hach For Free-Ammonia Testing And Nitrification Control When Bay-area water wholesaler San Francisco Regional Water System (SFRWS) changed its residual drinking water disinfection process from chlorine to chloramine, the town of Hillsborough’s Water Quality staff faced the challenge of updating its water testing procedures to prevent nitrification and continue to meet state-mandated drinking water quality standards.
  • Understanding Differences Of Boiler Feedwater Pretreatment Equipment

    As a water treatment professional, there are several reasons for understanding the various types of boiler pretreatment equipment. By Dave Christophersen,Veolia Water Solutions & Technologies

  • Drinking Water Disinfection: Tianjin, China (Case Study)
    Drinking Water Disinfection: Tianjin, China (Case Study)

    Favorable reviews of UV technology in wastewater applications influenced Tianjin Economic Development Area (TEDA) Water Supply General Company to investigate the potential of using UV for drinking water applications at one of its water treatment plants. With no previous UV installations for drinking water disinfection in the country, TEDA's process of selecting a UV manufacturer was stringent. We are honored that they chose us and our TrojanUVSwift™ system.

  • MVC Evaporator Technology To Treat And Reuse Produced Water From A SAGD Facility
    MVC Evaporator Technology To Treat And Reuse Produced Water From A SAGD Facility

    The SAGD Facility is called "Orion" and consists of 4 major processes: Steam Generation, Injection/Recovery Wells, Deoiling and Water Purification, for recovery of oil. SAGD (Steam Assisted Gravity Drainage) is a technique to recover bitumen from the oil sands formation. By Aquatech International Corporation

  • New Technologies Set To 'Disrupt' The Industry
    New Technologies Set To 'Disrupt' The Industry

    For the unfamiliar, the term “disruptive technology” initially sounds quite bad, as though it describes something that gets in the way. Far from impeding progress, however, disruptive technologies actually accelerate progress exponentially by disrupting the status quo. Think personal computers vs. mainframes, or cell phones vs. land lines.

  • Understanding ISE Measurements In Wastewater Process Monitoring
    Understanding ISE Measurements In Wastewater Process Monitoring

    Analytic measuring technique provides a huge number of procedures to determine the concentrations of substances in an unknown sample, e.g. photometry, titration or mass spectrometry.

  • 5+1/2 Keys To Ozone Disinfection Success

    Ozone disinfection of water has been a common practice for nearly 100 years. By Thoram Charanda, Chief Scientist, Guardian Research & Development Labs and Louis LeBrun, PE, Vice President, Pinnacle Ozone Solutions, LLC

  • Top 10 Considerations When Converting To On-Site Hypochlorite
    Top 10 Considerations When Converting To On-Site Hypochlorite

    Transporting pure salt - the raw material needed to generate sodium hypochlorite onsite – is more cost effective, stable, and safer, than transporting and storing bulk sodium hypochlorite, or gaseous/liquid chlorine cylinders from local chemical suppliers. The conversion to on-site hypochlorite generation can be achieved by adhering to these design guidelines.

More Drinking Water Treatment Case Studies and White Papers

DRINKING WATER TREATMENT APPLICATION NOTES

More Drinking Water Treatment Application Notes

DRINKING WATER TREATMENT PRODUCTS

EM-Pure™ Membrane Systems

EM-Pure™ Membrane Systems

As a preferred GE partner, we offer the full line of GE Membrane Systems, products and services which include complete systems, membrane elements, controls, filters, high-pressure pumps and maintenance plans. The GE brand is synonymous with quality, engineering and craftsmanship! With Filtronics, you will get quick delivery, fast installation, responsiveness to your concerns, ease of use and extreme reliability.

AquaDiamond<sup>®</sup> Cloth Media Filtration System

AquaDiamond® Cloth Media Filtration System

The AquaDiamond® filter, a new horizontal configuration for the Cloth Media Filter, has been produced. It utilizes PA-13 pile cloth as its filter media.

Low Flow Arsenic Removal Systems

Low Flow Arsenic Removal Systems

Our Condor EM-IX Low Flow systems are designed for durability, ease of use, and reliability. Our pre-packaged systems with high capacity NXT-2 media will remove arsenic to below 10ppb at a lower treatment cost than other brands on the market today. Our pre-engineered modular systems focus on treating flows from 5 to 125 gallons per minute.
Filtration: <b>Spectrum Filter™</B>

Filtration: Spectrum Filter™

The Spectrum Filtration Systems is a superior filtration system that handles water with a suspended solids concentration in excess of 100 mg/L and provides filtration turbidity of less than 0.1 NTU.

SMART Digital Dosing

SMART Digital Dosing

SMART Digital dosing pumps respond to the most recent chemistry developments in water treatment, wastewater recycling, and disinfection with energy saving technology and high dosing accuracy.

Reverse Osmosis

Reverse Osmosis

Reverse osmosis, electrodeionization, nanofiltration, and ultrafiltration are several of the membrane systems that Aquatech International Corporation offers.
More Drinking Water Treatment Products

LATEST INSIGHTS ON DRINKING WATER TREATMENT

  • Waste Heat Recovery For Desalination From Steam Power Plants
    Waste Heat Recovery For Desalination From Steam Power Plants

    Currently, in the Kingdom of Saudi Arabia about 1.5 million barrels of oil are consumed daily to generate electricity to drive reverse osmosis desalination plants.  This represents about 15 percent of KSA’s daily oil production. 

  • Everything Old Is New Again
    Everything Old Is New Again

    As water treatment plant managers face relentless challenges — aging infrastructure, stricter watershed protection regulations, higher energy costs, growing water scarcity, and tighter budgets — solutions are emerging that blend computer-age technology with the tried-and-true practice of granular media filtration. By Jim Lauria, Senior Vice Director-Water Treatment, Bilfinger Water Technologies

  • Generating Disinfectants From Water: Could In Situ Electrolytic Production Be The Future?
    Generating Disinfectants From Water: Could In Situ Electrolytic Production Be The Future?

    Chemical disinfection using strong oxidants involves the transportation, storage, and handling of unstable and/or aggressive and hazardous chemicals. The production of oxidants at the location where they are to be used has therefore been a preferred option, especially in small-scale or remote installations. On-site electrolysis of NaCl for the local production of chlorine or hypochlorite, or the production of ozone-enriched oxygen by silent discharge has been standard for years.  However, it is possible to take the idea of producing chemical disinfectants locally a step further and look at in situ techniques, i.e. at devices, which produce oxidants in and from the water to be treated. By Dr. Samuel Stucki, Scientific Consultant to Innovatec Gerätetechnik GmbH,Germany

  • 9 Best Bets In Membrane Technology
    9 Best Bets In Membrane Technology

    A review of the most impressive, high-potential technologies featured at this year’s Membrane Technology Conference & Exhibition (AWWA/AMTA) in Las Vegas.

  • Maintaining Data Acquisition Capabilities Through Storms, Cyber Attacks
    Maintaining Data Acquisition Capabilities Through Storms, Cyber Attacks

    Not all technology holds up during a weather emergency. Electricity often fails, communication methods are compromised, and computer networks go offline.

  • Instrumentation: Dos And Don’ts For The Water Industry
    Instrumentation: Dos And Don’ts For The Water Industry

    To say that instrumentation, automation, and control are key to the modern wastewater industry is somewhat of an understatement.  With growing populations, tighter consent parameters, and the need to do more for less, operational efficiency is more and more important. 

More Drinking Water Treatment Insights

DRINKING WATER TREATMENT VIDEOS

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.

Mobile Combination Reverse Osmosis Treatment Service

Mobile Combination Reverse Osmosis Treatment Service

Generally used for short-term or emergency water needs, mobile water treatment services from Evoqua Water Technologies provide a convenient source of water to match customer site and raw water conditions.

Introducing EXO - A New, State-Of-The-Art Water Monitoring Platform Video

Introducing EXO - A New, State-Of-The-Art Water Monitoring Platform Video

EXO, a state-of-the art water quality monitoring platform, is designed to address the many challenges of collecting accurate field data in the natural environment.

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.
Video: UAT™ Membrane Filtration Systems

Video: UAT™ Membrane Filtration Systems

Using high quality components, the skid-mounted UAT systems are engineered to effectively produce treated water, free of particulate matter or contaminants
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.