wastewater treatment plants Articles

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Lamix - anaerobic sewage treatment EGSB - Case Study

by PP-EKO Sp. z o.o.  (Feb. 4, 2015)

Executed as "design and build" contract anaerobic wastewater treatment in paper Lamix is one of the first of it's kind in Polish and Central European P&P. WWTP built in EGSB (expanded granular sludeg bed) anaerobic reactors technology is heavy duty, rubust and easy to extend. It purifies industrial sewage from recycled paper factory (tissue ...

Diamond Project

by IWA Publishing  (Feb. 9, 2015)

DIAMOND is a 24-month ‘Research for SMEs’ European Union's  (FP7/2007_2013) project that began in September 2012 and finished in August 2014. The project aims to achieve a model of excellence in the management of wastewater treatment systems by addressing ...

10 Questions (And Answers) That May Change the Way You Aerate

by KLa Systems, Inc.  (Feb. 26, 2015)

Slot Injector: How does the slot-shaped nozzle of the Slot Injector™ aeration system improve performance? The slot shaped nozzle and mixing chamber provide a larger shear surface for mass transfer than a circular jet of identical area. This unique shape results in a high percentage of gas dissolution and superior oxygen transfer rates ...

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 ...

ACS installation at Glowood 100,000ton/y pellet plant achieves 12mg/Nm3

by Advanced Cyclone Systems, S. A.  (Feb. 5, 2015)

With increasingly tougher restrictions on industrial air emissions, pellet manufacturers are looking to "future-proof" particulate matter (PM) compliance, cost effectively. One Portuguese producer, Glowood Indústria S.A., has recently installed a brand new type of mechanical cyclone. The most recent results show a remarkable reduction of ...

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 ...

Wastewater treatment process impact on energy savings and greenhouse gas emissions

by IWA Publishing  (Jan. 30, 2015)

The objective of this research was to assess the energy consumption of wastewater treatment plants (WWTPs), to apply a mathematical model to evaluate their carbon footprint, and to propose energy saving strategies that can be implemented to reduce both energy consumption and greenhouse gas (GHG) emissions in Greece. The survey was focused on 10 ...

Basis for the development of sustainable optimisation indicators for activated sludge wastewater treatment plants in the Republic of Ireland

by IWA Publishing  (Jan. 21, 2015)

This paper describes the basis of a stakeholder-based sustainable optimisation indicator (SOI) system to be developed for small-to-medium sized activated sludge (AS) wastewater treatment plants (WwTPs) in the Republic of Ireland (ROI). Key technical publications relating to best practice plant operation, performance audits and optimisation, and ...

Integrated assessment of wastewater treatment plant effluent estrogenicity in the Upper Murray River, Australia, using the native Murray rainbowfish (Melanotaenia fluviatilis)

by John Wiley & Sons, Ltd.  (Jan. 23, 2015)

The contamination of major continental‐river systems by endocrine‐active chemicals (EACs) derived from the discharge of wastewater treatment plant (WWTP) effluents can impact human and ecosystem health. As part of a long‐term effort to develop a native fish model organism for assessment of endocrine disruption in Australia's largest watershed, ...

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 ...

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