نتایج جستجو برای: waste water purification

تعداد نتایج: 669885  

Journal: :WHO South-East Asia journal of public health 2015
Su Latt Tun Myint Thuzar Myint Wah Wah Aung Khin Thet Wai

BACKGROUND A major health consequence of rapid population growth in urban areas is the increased pressure on existing overstretched water and sanitation services. This study of an expanding periurban neighbourhood of Yangon Region, Myanmar, aimed to ascertain the prevalence of acute diarrhoea in children under 5 years; to identify household sources of drinking-water; to describe purification an...

2014
Ekta Chaudhary Praveen Sharma

Treatment of domestic wastewater, at both the village and urban level, remains a problem in most developing countries. This is a review paper illustrating the use of duckweed-based wastewater treatment systems that provide genuine solutions to these problems. They are inexpensive to install as well as to operate and maintain. They do not require expensive technologies. Therefore, this review pa...

2007
M. Willert-Porada

Biofilms of natural anaerobic microbial consortia externally grown on Gas Diffusion Electrodes (GDL) in a bioreactor, were investigated within a MembraneElectrode-Assembly with respect to lifetime and electricity production upon variation of biodegradable materials with an oxygen demand of 1000mg/l as simulated waste water. A remarkable differentiation and plasticity of the films is observed, t...

2013
Vesna B. Lazarević Ivan M. Krstić Miodrag L. Lazić Dragiša S. Savić Dejan U. Skala Vlada B. Veljković

The treatment of spent oil-in-water emulsion (SOWE) from a non-ferrous metal-processing plant by using aluminum sulfate and hydrated lime was studied in order to determine the purification efficiency, optimize the operating conditions and scale up the treatment process. The purification efficiency was estimated by comparing the compositions of the SOWE and the processed wastewater. The treatmen...

Journal: :The Science of the total environment 2014
Zsuzsanna Magdolna Nagy Mónika Molnár Ildikó Fekete-Kertész Ibolya Molnár-Perl Éva Fenyvesi Katalin Gruiz

Small scale laboratory experiment series were performed to study the suitability of a cyclodextrin-based sorbent (ß-cyclodextrin bead polymer, BCDP) for modelling the removal of micropollutants from drinking water and purified waste water using simulated inflow test solutions containing target analytes (ibuprofen, naproxen, ketoprofen, bisphenol-A, diclofenac, β-estradiol, ethinylestradiol, est...

2008
aTEFAN VALENTIN BRANESCU ALEXANDRU POPESCU

Heavy metals are natural components of Earth’s crust. They cannot be degraded or destroyed. The impurification of water surfaces with heavy metals usually has disastrous effects on the environment. That’s why the determination of heavy metals concentrations at levels of ppm or ppb is strictly necessary. Industrial, economical and demographic development generates huge amounts of wastes which ha...

Journal: :Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 2011

Journal: :Minutes of the Proceedings of the Institution of Civil Engineers 1900

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