wastewater treatment plants Articles

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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 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 ...

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 ...

Frankfort Electric and Water Plant Board Verifies Distress on Ductile Iron Pipe Using Electromagnetics

by Pure Technologies  (Dec. 17, 2014)

Commercial introduction of ductile iron pipe (DIP) began in the mid-1950s and was established as the most frequently selected material of choice for ferrous pressure pipe by the early 1970s. Due to the widespread use of DIP during a large expansion of pipeline infrastructure in the 1970s, there are many thousands of miles of pressurized DIP in ...

Landfill Leachate Treatment Technology Piloted in Ireland - White Paper

by Combined Environmental Technologies Ltd (Ireland)  (Dec. 11, 2014)

The primary objective of this project was to develop a full scale Pro-Bio design which could treat wastewaters such as Leachate by piloting a small scale first to determine the precise structural design, process flow and programming which would be required for a successful full scale model of this technology. During this pilot treating Landfill ...

Successful degradation of a cobalt organic complex and TOC by advanced oxidation processes

by ESCO International  (Nov. 26, 2014)

A chemical manufacturing plant needed to remove cobalt from biologically treated wastewater. The current cobalt concentration is higher than 1000 ppb and needs to be reduced to below 5 ppb. Cobalt speciation analysis results have shown that much of the cobalt is present as organically bound complexes. These complexes are known to be difficult ...

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 ...

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 ...

What is Wastewater?

by Environmental Services by Daniel L. Theobald  (Jan. 12, 2014)

What is wastewater? Wastewater, the waste discharge that first comes to mind in any discussion of stream pollution, is the discharge of domestic wastewater, which contains a large amount of organic waste. Industry also contribute substantial amounts of organic waste, some of which comes from vegetable and fruit packing; dairy processing; meat ...

Wastewater Treatment Plant Monitors Greenhouse Gas Emissions

by Gasmet Technologies Oy  (Apr. 16, 2014)

Globally, little attention is paid to gaseous emissions from wastewater treatment processes. This contrasts greatly with the regulatory monitoring that is applied to the quality of water emissions from such facilities. However, in Helsinki, Finland, a large municipal wastewater treatment facility continuously monitors its emissions of greenhouse ...

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