نتایج جستجو برای: purification of wastewater

تعداد نتایج: 21170816  

Journal: :Sustainability 2023

Additives play an important role in the production of plastic materials through their application, which mechanical, thermal, and physical properties polymers are improved, making them last longer be more resistant. During synthesis polypropylene resins, remains additives that not absorbed by resin removed purification stage end up wastewater. In this article, recovery (Z)-13-docosenamide from ...

Journal: :Tehnìka, energetika, transport APK 2022

The processes of self-purification nature due to the high concentration xenobiotics and resistance decomposition are very slow. Therefore, an urgent environmental task is restore environment: rational processing industrial agricultural waste, restoration land fertility from toxic chemicals, disposal sludge sewage treatment plants, purification water sources, etc. Among above problems production...

Journal: :E3S web of conferences 2021

Due to the growth of man-caused pollution, there is a need use modern methods water purification. It advisable sorption for extraction heavy metals, which are considered be particularly dangerous. established that sorbents based on magnetite quite effective in copper ions. shown capacity magnetite-based towards ions depends ratio concentrations Fe 2+ and 3+ reaction mixture, increases with incr...

Background & Aims of the Study: Discharge of industrial wastewater to the environment has harmful effects. Textile industry is one of the industries that burdens pollutants to the environment. So the wastewater of these industries must be treated before discharging into the environment. Various methods for removing industrial pollutants have been investigated. Among them, AOPs have attracted mu...

Background: Nowadays, due to the emergence of drug resistance to antibiotics, a good alternative to drugs should be found. Bacteriophages are viruses that play a very important role in the destruction of bacteria. Because of their specific properties, bacteriophages can be considered as suitable substitutes for antibiotics in the treatment of infectious diseases. The aim of this study was to is...

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...

2006
Nazim Cicek Juan P. Franco Makram T. Suidan

eclaimed municipal wastewater is becoming a source of public water supplies in places where water is limited. In countries such as Japan, South Africa, and France, legislation encouraging innovative technologies that render wastewater fit for reuse has stimulated the development of alternative processes.1 The use of membranes in tertiary treatment and advanced purification evolved as a promisin...

2012
Paweł Cyplik Roman Marecik Agnieszka Piotrowska-Cyplik Anna Olejnik Agnieszka Drożdżyńska Łukasz Chrzanowski

Wastewater samples originating from an explosives production plant (3,000 mg N l(-1) nitrate, 4.8 mg l(-1) nitroglycerin, 1.9 mg l(-1) nitroglycol and 1,200 mg l(-1) chemical oxygen demand) were subjected to biological purification. An attempt to completely remove nitrate and to decrease the chemical oxygen demand was carried out under anaerobic conditions. A soil isolated microbial consortium ...

2008
Jahirul I. Mazumder Jesse Zhu Amarjeet S. Bassi Ajay K. Ray

The interest in recovery of various functional proteins from large volume of industrial broths and biological wastewater streams has increased in recent years, due to the advancement in genetic engineering, and concerns about recycling limited resources and environmental protection (Lan, 2001). Ion exchange adsorption and chromatography have long been used for downstream processing in the biote...

2013
Charles W. Schmidt

Wastewater produced by hydraulic fracturing (" fracking ") for natural gas in the Marcellus Shale is already overwhelming disposal options and will continue to do so as gas development increases, according to newly published research. The investigation did not evaluate environmental consequences of the wastewater. But lead author Brian Lutz, an assistant professor in the Kent State University D...

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