wastewater treatment plants Articles

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From Wastewater Treatment to Sweet Pineapples

by Sulzer Ltd  (Nov. 5, 2014)

In wastewater treatment, ammonia that is removed from sewage used to be discharged directly to the atmosphere. Nowadays, studies have identified that ammonia emissions are of major concern to air quality. This has led to a new way of thinking. Sulzer offers modern closed-air-loop systems for wastewater treatment that transform ammonia into a ...

Car Wash Wastewater Treatment - Case Study

by Hydrasyst  (Oct. 17, 2014)

Wastewater Treatment Plant, Robina Car Wash, Qld Case Study: Car Wash WWTP Client: Robina Car Wash Year: 2012 Capacity: 800 l/h BACKGROUND Car washes use very little potable (mains drinking) water by using fine nozzles and high pressure hoses. Linked ...

Grand Forks wastewater authority - North Dakota, U.S.A. case study

by Pure Technologies  (Nov. 18, 2014)

Service: SmartBall - Leak & Gas Pocket Detection Client: Grand Forks Wastewater Authority Project Date: 2008 Type of Pipeline: Force Main Diameter: 30- and 36-inch Pipe Material: PCCP and PVC Length: 46,464 Feet Pressure: Results: 6 Gas Pockets In late October 2008, the Grand Forks Wastewater Authority ...

RO membrane cleaning using microbubbles at 6,800m3/day Wastewater RO Plant in UAE.

by Genesys International Limited  (Oct. 6, 2014)

It is well known that any fouling of the membrane surface has a dramatic effect on energy consumption and plant efficiency; this is particularly true for waste water RO plants due to the higher fouling rate. Such fouling can be very difficult to clean using commodity chemicals or even speciality chemicals. This paper explores the use of a novel ...

Wastewater Level Measurement Techniques

by Greyline Instruments Inc.  (Sep. 2, 2014)

Level monitoring and control is a fundamental requirement in any wastewater treatment process. You will find level instrumentation installed at even the simplest treatment plants for pump control, chemical storage tanks and process level controls or alarms. Operators have only limited or emergency control over treatment plant influent, so level ...

EVALED™: A technical solution for oil emulsion and cleaning parts wastewater - Case study

by EVALED  (Oct. 16, 2014)

Case study about a car manufacturer company who produce engines in Slovakia. They produce gasoline engines by five production lines, four metal cutting lines and one assembly line. Their goal was the reduction of the oily wastewater disposal costs. To improve the environmental impact and reduce the total amount of CO2 produced in their ...

Rapid small-scale column testing of granular activated carbon for organic micro-pollutant removal in treated domestic wastewater

by IWA Publishing  (Oct. 20, 2014)

This study investigates the applicability of the rapid small-scale column test (RSSCT) concept for testing of granular activated carbon (GAC) for organic micro-pollutants (OMPs) removal from wastewater treatment plant (WWTP) effluent. The chosen experimental setup was checked using pure water, WWTP effluent, different GAC products, and variable ...

Stability of alumina, ceria, and silica nanoparticles in municipal wastewater

by IWA Publishing  (Nov. 18, 2014)

Inorganic oxide nanoparticles (NPs) are used in semiconductor manufacturing operations such as wafer chemical–mechanical planarization (CMP). Understanding the stability of NPs in municipal wastewater is essential for the evaluation of the fate of NPs released to municipal wastewater treatment plants (WWTPs). This study aimed to evaluate ...

Nitrogen transformations and mass balance in an integrated constructed wetland treating domestic wastewater

by IWA Publishing  (Nov. 18, 2014)

Nitrogen (N) transformations and removal in integrated constructed wetlands (ICWs) are often high, but the contributions of various pathways, including nitrification/denitrification, assimilation by plants and sediment storage, remain unclear. This study quantified the contributions of different N removal pathways in a typical multi-celled ICW ...

Development of a natural treatment system consisting of red ball earth and alfalfa for the post-treatment of anaerobically digested livestock wastewater

by IWA Publishing  (Sep. 17, 2014)

With the objective of developing a post-treatment process for anaerobically digested livestock wastewater, an innovative natural treatment system composed of two units is proposed. The first trickling filter unit further reduced biochemical oxygen demand and achieved a certain degree of nitrification. The second soil-plant unit was targeted at ...

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