biological oxygen demand removal Articles

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Performance and metabolic aspects of a novel enhanced biological phosphorus removal system with intermittent feeding and alternate aeration

by IWA Publishing  (Apr. 24, 2014)

A novel enhanced biological phosphorus removal (EBPR) system, which combined the intermittent feeding design with an anaerobic selector, was examined using on-line oxidation reduction potential (ORP), nitrate and ammonium probes. Two experimental periods were investigated: the aerobic and anoxic phases were set at 40 and 20 minutes respectively ...

Manure Spills: Prevention, Detection, Control Options, & the Role of Anaerobic Digesters

by BIOFerm™ Energy Systems  (Aug. 27, 2014)

An internet search for manure-related spills can lead to an exhausting list of news articles and images of catastrophic environmental damage. In Wisconsin alone, the ...

Linking sanitation and wastewater treatment: From evaluation on the basis of effluent pollutant concentrations to evaluation on the basis of pollutant removal efficiencies

by IWA Publishing  (Jul. 24, 2014)

In both developed and developing countries, centralised and on-site wastewater treatment systems have been developed for a long time. The main function of the wastewater treatment plants (WWTPs) should be removal of pollutants including organic carbon, nitrogen and phosphorus. Technologies applied to WWTPs are mostly with biological functions such ...

Membrane treatment of the bleaching plant (EPO) filtrate of a kraft pulp mill

by IWA Publishing  (Sep. 17, 2014)

The objective of this study was to evaluate the use of membrane technology to treat oxygen and peroxide-reinforced extraction stage (EPO) filtrate from a kraft pulp mill bleach plant. Three different types of tubular membranes were tested in a pilot plant: (i) tight ultrafiltration (UF); (ii) open UF followed by nanofiltration (UF + NF); ...

SANASA Capivari II – the first full-scale municipal membrane bioreactor in Latin America

by IWA Publishing  (Jul. 23, 2014)

The macro region of Campinas (Brazil) is rapidly evolving with new housing developments and industries, creating the challenge of finding new ways to treat wastewater to a quality that can be reused in order to overcome water scarcity problems. To address this challenge, SANASA (a publicly owned water and wastewater concessionaire from Campinas) ...

Toxicity reduction and biodegradability enhancement of cork processing wastewaters by ozonation

by IWA Publishing  (Nov. 29, 2013)

Biodegradability enhancement and detoxification of cork boiling wastewater (CBW) are required for the successful implementation of biological treatment options. We studied the possibility of achieving these goals through ozonation pre-treatment by experimenting on the effect of ozone dose and pH. The CBW used had a pH of 5.81, a chemical oxygen ...

Cosmetics production with smart wastewater treatment– with the disposal technology from DAS

by DAS Environmental Expert GmbH  (Jul. 2, 2014)

Emil Kiessling GmbH relies on the TFR technology from Dresden (Germany) for wastewater treatment Emil Kiessling GmbH with headquarters in Georgensgmünd, Middle Franconia (Germany), is a successful cosmetics manufacturer. The product range includes natural cosmetics through to sun ...

Biological treatment of pharmaceutical wastewater from the antibiotics industry

by IWA Publishing  (Feb. 26, 2014)

Pharmaceutical wastewater generated by an antibiotics (penicillin) company was treated by aerobic membrane bioreactors (MBRs) and sequencing batch reactors (SBRs). At a low organic loading rate of 0.22 kg-COD m−3d−1, both types of reactors were capable of treating the wastewater such that the treated effluent met the discharge ...

Simultaneous carbon and nitrogen removal from municipal wastewater in full-scale unaerated/aerated submerged filters

by IWA Publishing  (Jan. 16, 2014)

Characterization and evaluation of a biological submerged filter was carried out on a full-scale pilot plant performing removal of biochemical oxygen demand (BOD) and total nitrogen (TN) from pre-treated urban wastewater. The average influent values of BOD5, chemical oxygen demand (COD) and TN were 370, 1,015 and 60 mg/L, respectively. The pilot ...

An effective feature selection approach using hybrid particle swarm optimisation with spectral projected gradient algorithm for an up–flow anaerobic filter

by Inderscience Publishers  (Jun. 2, 2014)

Wastewater treatment plant (WWTP) helps to overcome water from excessive pollution. Chemical oxygen demand (COD) or biological oxygen demand (BOD) is the measure for the wastewater effluents. Up–flow anaerobic filter (UAF) is used for the removal and digestion of organic matter present in wastewater. In this work, the performance of the UAF with ...

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