نتایج جستجو برای: removal heavy metals

تعداد نتایج: 303575  

2016
S. A. Bapat

135 ABSTRACT: Heavy metals and dyes are major contributors in contamination of water streams. These contaminants enter into our ecosystem, thus posing a significant threat to public health, ecological equilibrium and environment. Thus a combined discharge of these contaminants results in water pollution with high chemical oxygen demand, biological oxygen demand, color, particulate matter, suspe...

2013
M. Mamatha H. B. Aravinda E. T. Puttaiah S. Manjappa

One of the causes of water pollution is the presence of heavy metals in water. In the present study, an adsorbent prepared from the raw bark of the Pongamia pinnata tree is used for the removal of ferrous or ferric ions from aqueous and waste water containing heavy metals. Adsorption studies were conducted at different pH, concentration of metal ion, amount of adsorbent, contact time, agitation...

2014
P. Jothimani S. Ponmani

An excess level of heavy metals are exposed into environment by industrial waste and fertilizers causes serious concern in nature as they are nonbiodegradable and accumulate at high levels. Heavy metals such as Pb, Zn, Cd, As etc. are one of the most toxic pollutants which show hazardous effects on all living livings. The prevailing purification technologies used for removal of contaminants fro...

2014
Praphulla Rao

Increasing industrialization in developing country like India leading difficulty in pollution control. One of the major causes of pollution in aquatic ecosystem is discharge of heavy metals. Wastewater containing heavy metals are treated with conventional technology like chemical precipitation, ion exchange etc. Biosorption of heavy metals from aqueous solution can be considered as an alternati...

Journal: :iranian journal of microbiology 0
fahimeh ghanbarinia basic science department, faculty of biology, hakim sabzevary university, sabzevar, iran, post code:9617976487. mitra kheirabadi basic science department, faculty of biology, hakim sabzevary university, sabzevar, iran, post code:9617976487. nasrin mollania basic science department, faculty of biology, hakim sabzevary university, sabzevar, iran, post code:9617976487.

background and objectives: heavy metals are considered as high risk biocides due to their harmful effects on human health, the environment and other living organisms. bacterial strains showing resistance to heavy metals has been used for removing such toxic materials from the environment. in this study we isolated and characterized a heavy metals-resistance halophilic bacterial strains from kal...

2017
Neha Mishra Neetu Mishra

Increasing population and Industrialization are key pollutant contributors in water bodies. These wastes are highly hazardous for humansand ecosystem and require a comprehensive, effective treatment before discharge into water bodies. Over the years, many up gradations have been introduced in traditional water treatment methods which were expensive and ineffective especially for removal of heav...

خسروی, طوبی, شرفی, کیومرث, لرستانی, بهاره, نادری, شهرام, پیرصاحب, مقداد,

Background and purpose: The chemical quality of feed water to dialysis instrument is very important, especially in terms of heavy metals which could cause serious health problems for dialysis patients. This study aimed to determine the concentration of selected heavy metals (lead, cadmium, chromium and zinc) in feed water to dialysis instrument and compared that with EPH and AAMI standards in h...

Journal: :IOP Conference Series: Materials Science and Engineering 2021

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