municipal wastewater Articles

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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 ...

Wastewater Treatment Plant Optimisation PLANT A - Case Study

by Combined Environmental Technologies Ltd (Ireland)  (Dec. 16, 2014)

Site Details: PLANT A, Co. Cavan, Ireland. Operator details: Undisclosed Description of Wastewater Treatment Facility: PLANT A is an activated sludge Municipal Wastewater Treatment Facility which has inlet works followed by an oxidation ditch, secondary clarifier and a tertiary clarifier. Difficulties encountered on the WWTP ...

Wastewater Treatment Plant Optimisation PLANT C - Case Study

by Combined Environmental Technologies Ltd (Ireland)  (Dec. 16, 2014)

Site Details:: PLANT C Wastewater Treatment Works, Co. Cavan, Ireland. Operator details: Undisclosed Description of Wastewater Treatment Facility: PLANT C is a Municipal Wastewater Treatment Facility which uses a trickling filter and RBC for treatment of the wastewater and has tertiary treatment using a reed bed before final ...

Wastewater Treatment Plant Optimisation PLANT B - Case Study

by Combined Environmental Technologies Ltd (Ireland)  (Dec. 16, 2014)

Site Details: PLANT B, Co. Cavan, Ireland. Operator details: Undisclosed Description of Wastewater Treatment Facility: PLANT B is a Municipal wastewater treatment plant which has primary clarification followed by a splitter chamber where the flow is split between 2 trickling filters with plastic media and an RBC. These operate in ...

Implications of nutrient removal and biomass production by native and augmented algal populations at a municipal wastewater treatment plant

by IWA Publishing  (Oct. 20, 2014)

Algal monocultures (Chlorella sorokiniana and Botryococcus braunii) and algal communities native to clarifiers of a wastewater treatment plant were batch cultivated in (1) clarified effluent following a biochemical oxygen demand (BOD) removal reactor post-BOD removal clarified effluent (PBCE), (2) clarified effluent following a nitrification ...

Situation analysis of China’s wastewater discharge

by Inderscience Publishers  (Aug. 11, 2014)

Great progress has been made in reducing China’s water pollution after decades of efforts. From the perspective of wastewater discharge, the situation of wastewater discharge since 1985 is analysed in this study, with importance attached to industrial wastewater, including wastewater from township enterprises, and to municipal domestic ...

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 ...

Urban water reform in Australia: lessons from 2003–2013

by IWA Publishing  (Dec. 15, 2014)

Extreme rainfall variability, record droughts, floods and high temperatures have had a major impact on social wellbeing, economic productivity and environmental functionality of urban settings in Australia. Compounded by urban growth and ageing water and wastewater infrastructure, Australia's urban water arrangements have undergone major ...

The use of antibacterial activity of ZnO nanoparticles in the treatment of municipal wastewater

by IWA Publishing  (Sep. 17, 2014)

Nanotechnology holds great potential in advanced water and wastewater treatment to improve treatment efficiency. Zinc oxide nanoparticles (ZnO NPs) have received considerable attention due to their unique antibacterial activities toward various microorganisms that are commonly found in the environment. In the present study, ZnO NPs were ...

Synthetic organic polymer fouling in municipal wastewater reuse reverse osmosis

by IWA Publishing  (Sep. 5, 2014)

A full scale waste water reuse plant suffered from irreversible fouling of the reverse osmosis (RO) membranes. The major suspect of fouling is cationic organic polymers applied in the wastewater sludge treatment. Thus, the purpose of this research is to study the effect of six cationic polymers, applied in the plant, on RO membrane performance. ...

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