wastewater treatment plants Articles

2202 Results found
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PPCPs: Preparing for an uncertain regulatory future

by Thermo Fisher Scientific, LIMS & Laboratory Software  (Mar. 25, 2015)

A recent study published in Environmental Pollution* identified 56 active pharmaceutical ingredients (APIs) in effluent samples from 50 large wastewater treatment plants across the U.S. Among the products found in samples were commonly prescribed anti-psychotic and antihypertensive drugs. As more studies continue to fuel public concerns over risks ...

Future-oriented further developments: wastewater heat utilization plants with a return on investment (ROI) of 2 - 6 years

by RABTHERM AG  (Mar. 9, 2015)

Sewage is dirty and stinks. Out of sniffing distance – out of mind. Up until the 1980s sewage was taboo and not given the attention it deserves. One cold winter morning in 1988, 23 years ago, Urs Studer stopped beside a steaming manhole cover and wondered how such a source of heat could go untapped. Ever since he has been dedicating himself ...

Škvorec WWTP in Czech Republic - Case Study

by AMCON Inc.  (Mar. 5, 2015)

Client's voice Since we had installed VOLUTE Dewatering Press in our waste water treatment plant I realized how much time we were wasting using dewatering bags. VOLUTE doesn´t need my presence and works fully automatically. I don´t sometimes even know that there is a dewatering unit in operation. Dewatering Data Sludge Type: Waste ...

Sulfiron - H2S Removal in municipal WWTP - Case Study

by Atlas Seis - Sistemas de Energia para a Industria e Serviços, Lda.  (Mar. 4, 2015)

Hydrogen Sulphide - What is it? It is a gas which arises during the anaerobic processes of organic matter, which remains in the biogas stream (0-1% H2S). What does it do? A small amount of hydrogen sulphide in the biogas is extremely corrosive/destructive to most equipments, such as boilers and pipes, and even equipment of energy production. The ...

Lamb-Weston’s French Fry Plant Saves on Fuel Costs with ADI-BVF® Anaerobic Reactor

by ADI Systems Inc.  (Mar. 3, 2015)

Location: Taber, Alberta, Canada • Sector: Food & Beverage The Client: Lamb-Weston is a division of ConAgra Limited—one of the largest potato processors in the world. The company operates several french fry processing plants. The Client’s Needs: Lamb-Weston required a wastewater treatment solution at its plant in Taber, ...

Population dynamics of filamentous bacteria identified in Polish full-scale wastewater treatment plants with nutrients removal

by IWA Publishing  (Mar. 16, 2015)

A comprehensive study of the identity and population dynamics of filamentous bacteria in five Polish full-scale municipal wastewater treatment plants (WWTPs) with nutrients removal had been carried out for 2 years. A quantitative culture-independent, molecular method – fluorescence in situ hybridization – was applied to evaluate ...

Bioaugmentation/waste water treatment in municipal WWTP - Case Study

by Atlas Seis - Sistemas de Energia para a Industria e Serviços, Lda.  (Mar. 4, 2015)

What is it? The bioaugmentation is an innovative technology which consists in an increase of selected bacteria to help naturally the biological process of organic compounds degradation. It is proper to dose in any effluent type and wastewater treatment system, which no longer has enough capacity or has an inefficient performance. These products ...

Siloxanes reactor - Siloxanes removal in municipal WWTP - Case Study

by Atlas Seis - Sistemas de Energia para a Industria e Serviços, Lda.  (Mar. 4, 2015)

Siloxanes - What are they? Siloxanes are a subgroup of silica compounds containing Si-O bonds with organic radicals attached to the silica molecule including methyl and ethyl groups, among others. These compounds are widely used in various industrial processes and are frequently added to consumer products (shampoos, toothpastes, lotions, paper ...

A simple empirical model for the clarification-thickening process in wastewater treatment plants

by IWA Publishing  (Feb. 26, 2015)

In wastewater treatment plants (WWTPs), activated sludge is thickened in secondary settling tanks and recycled into the biological reactor to maintain enough biomass for wastewater treatment. Accurately estimating the activated sludge concentration in the lower portion of the secondary clarifiers is of great importance for evaluating and ...

Population balance models: a useful complementary modelling framework for future WWTP modelling

by IWA Publishing  (Jan. 30, 2015)

Population balance models (PBMs) represent a powerful modelling framework for the description of the dynamics of properties that are characterised by distributions. This distribution of properties under transient conditions has been demonstrated in many chemical engineering applications. Modelling efforts of several current and future unit ...

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