On-Site Water Treatment Articles on Environmental XPRT

What classifies as water pollution and why is it an issue?

The UN declared 2005-2015 as the International Decade for Action ‘Water for Life’. Yet each day thousands of people still die as a result of contaminated water. This does not even take into account the millions of organisms that perish every year thank to polluted water sources. Water pollution is a huge issue that is made more so by the fact that unfortunately, water is ...

Sep. 13, 2017

By Aquaread Limited

On-site industrial wastewater treatment

Priority pollutant behaviour in on-site treatment systems for industrial wastewaters The majority of wastewaters deriving from the chemical industry consist of aqueous discharges produced during the physico-chemical processing of synthetic mixtures involving operations such as filtration, centrifugation, extraction and/or distillation. The wastewater streams, referred to as ...

Jul. 21, 2011

By IWA Publishing

On-site water treatment service cuts costs

After more than two decades in the global oilpatch, Stuart Snydmiller thinks the future for his startup firm is in water, not petroleum. Or at least waste water.Tangent Environmental Technologies, owned with brother Jason and others, has taken existing technologies and put them together into a package that offers huge savings for drilling firms and any industrial operation that needs to process, ...

May 16, 2009

Gas Station Site Dewatering Treatment

Gas Station Site Dewatering Treatment Florida Carbonair provided a turn-key temporary water treatment system for this project. A Carbonair field crew mobilized, set up, and trained the clients operators of the system to operate the system. At the conclusion of the project Carbonair provided demobilization services including the extraction and disposal of ...

Mar. 8, 2012

By Carbonair Environmental Systems, Inc.

A simulation of the fate of nitrogen in an on-site wastewater treatment system

An experiment to study and to build a mathematical model to reproduce the behavior of nitrogen in a residential wastewater treatment process was performed. A pilot unit receiving grey and black water was used. The pilot consisted in a septic tank followed by a fixed-film, partly aerated bioreactor with effluent recirculation operated under two different scenarios: normal operating conditions and ...

Feb. 1, 2011

By IWA Publishing

Effectiveness of Alternative On-Site Wastewater Treatment Technologies

ABSTRACT New York City’s drinking water supply is threatened by the potential development of the Catskill/Delaware watershed. The effectiveness of alternative on-site wastewater treatment systems in this drinking water supply watershed is being evaluated during the course of a oneyear field study. Twenty-four on-site systems were designed and installed for individual sites throughout the ...

Oct. 13, 2007

By Water Environment Federation (WEF)

E.On on-site sewage treatment plant (Ratcliffe-on-Soar)

Located in Nottinghamshire, E.On's Ratcliffe-on-Soar facility is one of the most efficient coal fired power stations in the UK. With a total generation capacity of 2,000MW it produces enough electricity to meet the needs of approximately 2 million people. In March 2008 WPL were contacted by E.On to enquire about a replacement sewage treatment solution to serve personnel located at the site's ...

May 1, 2009

By WPL Ltd

Waste Water Treatment Plants

In 1980, Los Angeles began exploring alternatives to control the H2S concentration in the digester gas produced at the Hyperion Waste Water Treatment Plant (WWTP), which treats nearly 420 MGD, wastewater generating over 475 tons of raw sludge per day. The digester gas H2S concentration had to be controlled so that the SOx emissions from the on-site combustion of the gas could be kept within ...

Jul. 27, 2007

By Merichem Company

Waste Water Treatment Plants

In 1980, Los Angeles began exploring alternatives to control the H2S concentration in the digester gas produced at the Hyperion Waste Water Treatment Plant (WWTP), which treats nearly 420 MGD, wastewater generating over 475 tons of raw sludge per day. The digester gas H2S concentration had to be controlled so that the SOx emissions from the on-site combustion of the gas could be kept within ...

Jul. 31, 2006

By Merichem Company

Water Treatment - Torry Quay

The Client: Civils Contractor The Challenge: Following identification of heavy hydrocarbon impacted water during de-watering works, Soilutions were contacted to provide a solution. Impacted waters comprised significant free phase oil on the surface, significant dissolved phase oils, and unknown sediment loading. Requested flow rates were 60m3/hr. Supervision was ...

Oct. 23, 2012

By Soilutions Ltd

Water treatment in Brazil

The challenge Many factories in Brazil do not dispose their sewerage in a professional way. Only big enterprises use facilities to treat their industrial waste water, whereas numerous small and medium-sized enterprises convey their sewerage flow into rivers and brooks or pit drainages. This results in a significant environmental burden and endangers the health of the population. ...

Jan. 16, 2015

By EnviroChemie GmbH

The importance of Water Treatment in industry

Water treatment is an important industry requirement and comes under 4 main branches which include boiler water treatment, cooling water treatment, water purification and the treatment of wastewater effluent. It is considered that these cover the majority of Water treatment processes in the UK and Internationally. Water treatment is often seen as an additional cost on top of an already very ...

Aug. 2, 2011

By Feedwater Ltd

The Daytona Beach Ralph Brennan Water Treatment Plant Finds On-Site Generation to be a Safe and Economical Solution for Water Disinfection

ABSTRACT For many years the use of gaseous chlorine at water treatment plants has been an effective and widely used method of disinfection. It is still the most commonly used disinfectant treatment in water treatment plants in the United States. In recent years however, the safety of chlorine gas has come under increased scrutiny. The side effects to chlorine gas exposure at low levels ...

Oct. 13, 2007

By Water Environment Federation (WEF)

On Site Bioremediation Of Oily Ballast Waters Of Ships and Tankers

A poster presentation was made at the International Ballast Water symposium held in London, UK Paper discusses application of bioremediation products for ship board remediation of oily ballast water on ships and tankers and presents some case studies on bioremediation of industrial oily waste. Abstract Discharge of oily wasie ballast waier is a perpetual problem for most types of ...

Aug. 12, 2013

By Sarva Bio Remed, LLC

Institutional trajectory for diffusing on-site wastewater treatment in urban China

Urban water scarcity has been an issue for a long time in China while water pollution has attracted more and more attention over the last two decades. Recently, on-site wastewater treatment (OST) has been proposed as a meaningful alternative to deal with both water pollution and water scarcity in cities in a more sustainable way. However, the diffusion of such an OST system is still slow and ...

Sep. 16, 2013

By IWA Publishing

The East-Sullivan Mine Site: Merging Prevention and Treatment of Acid Mine Drainage

At East Sullivan, an innovative treatment of acid effluents is based on the sulphate reduction via the recirculation of water discharging around the impoundment through the organic cover. Data show that despite acid feeds down to pH 2.5, groundwater’s pH near the dispersal zone is maintained above 6. Alkalinity decreases during the recirculation, but is back up to 800 mg/L and more the following ...

Jan. 1, 2004

By Hydrogeochem Env. Inc.

On-site treatment of used wash-water using biologically activated membrane bioreactors operated at different solids retention times

Biologically activated membrane bioreactors (BAMBis) were operated at suspended solids retention times (SRT) of 7 and 102 days and at full solids retention. The effect of these different approaches of operation on the substrate and nutrient conversion, and on permeate flux, was investigated. Variations in organic loads and aeration intensities were also studied. Permeate flux stabilized during ...

Sep. 23, 2015

By IWA Publishing

Chemically Enhanced Primary Treatment for a Large Water Reclamation Facility on a Constricted Site - Considerations for Design, Start-Up, and Operation

To provide greater treatment capacity and to meet new water quality criteria for discharge to the Chattahoochee River, Cobb County Water System (CCWS) construction a new 60 million gallon per day (mgd) liquid treatment facility at the R.L. Sutton Water Reclamation Facility (Sutton WRF). A restricted site (25 acres) combined with an effluent limit on total phosphorus of 0.5 mg/L resulted in the ...

Oct. 21, 2006

By Water Environment Federation (WEF)

ClorTec™ On-site Disinfection Helps Ensure Safety at British Columbia Water Treatment Facility

Constructed in 1997, the District of Chetwynd Water Treatment Plant (British Columbia, Canada) treats nearly 2,500 cubic meters of water per day using gas chlorination as its primary form of drinking water disinfection. With recent concerns about the safety of chlorine gas, including potential eye, skin and respiratory irritation and the risk of death with high exposure, the district elected ...

Feb. 1, 2007

By Industrie De Nora S.p.A. | De Nora Water Technologies

ClorTec® An Operational Profile of a Pennsylvania Water Treatment Plant’s On-site Hypochlorite Generating System

For more than 30 years, on-site generation of sodium hypochlorite has been a key process in water treatment for municipal and industrial applications. The benefits of the on-site generation process over chlorine gas and bulk hypochlorite have been well documented and include: Eliminate bulk storage of hazardous chemicals Reduce risk to plant personnel because of drastically eliminate hazardous ...

Mar. 1, 2007

By Industrie De Nora S.p.A. | De Nora Water Technologies

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