Klimenko TV Wastewater from heavy metal ions
Reviewers Register Log Urgent publication to publish your article on the publication of evidence now order a printed copy of the magazine requirements for the articles All magazine publishers Journal About Editorial standard countertop height Contact Information Archive Columns and languages publications Search Mobile Access Project Reviews
Tatyana Klimenko Vsevolodovna Cherkasy State Technological University Senior Lecturer, Department of Chemistry and Chemical Technology of Inorganic standard countertop height Compounds Abstract This article deals with the problems standard countertop height of extraction of heavy metals from wastewater standard countertop height and their impact on the human body. Our studies suggest that ultrafiltration is a simple, effective and energy-efficient wastewater treatment of chromium (VI) and iron, and the use of activated bentonite clays will increase the degree of purification of waste waters from chromium (VI) and offer it as a sorbent for industrial through cheap and readily available. These studies are relevant and brings new wastewater treatment process.
Klimenko Tatiana Vsevolodovna Cherkasy State Technological University Senior Lecturer, standard countertop height Department of Chemistry and Chemical Technology of Inorganic Substances Abstract This article focuses on the heavy metals extraction methods from wastewater and their impact on the human body. Our studies suggest that the ultrafiltration method is simple, effective and energy-efficient wastewater treatment of chromium (VI) and iron, and the use of activated bentonite clays will increase the degree of purification of waste water from chromium (VI) and offer it as an industrial sorbent for due to cheapness standard countertop height and availability. standard countertop height These studies are relevant and makes improvements standard countertop height to the wastewater treatment process.
Bibliography link to the article: Klimenko TV Wastewater from heavy metal ions // Modern scientific research and innovation. 2013. 11 [electronic resource]. URL: http://web.snauka.ru/issues/2013/11/28484 (date accessed: 01.08.2014).
Waste water containing heavy metals (industrial wastewater), are formed in the automotive and chemical industry, in the manufacture of electrochemical cells and processing of metal surfaces, in the electronics industry, in the printing on leather and other factories. They pose a great threat to the environment and to humans. [1]
The problem of removing heavy metals from wastewater is now especially relevant. Poorly treated waste water flows into natural water bodies, standard countertop height where the heavy metals accumulate in the water and sediments, thus becoming a source of secondary pollution. Heavy metal compounds relatively quickly standard countertop height spread over the volume of the water body. Partly they are precipitated as carbonates, sulfates, partially adsorbed onto mineral and organic sediments. The result is that the content of heavy metals in sediment is constantly increasing, and when the adsorption capacity is exhausted by precipitation, heavy metals enter the water, which leads to the environmental crisis. Penalties for discharge of heavy metals in the water are becoming tougher, but it does not solve the problem. [1]
Heavy metals ingested with food and water, accumulate there, because not excreted and cause various diseases. In small doses of iron, zinc and other metals vital because involved in different forms of metabolism, transfer, synthesis of substances. But at concentrations exceeding the maximum permissible these metals are harmful, so waste water qs cleaned of heavy metals.
Work has been done to clean up the waste water and artificial standard countertop height samples of iron (Fe) and chromium Cr (VI), which belong to the danger class 3 (dangerous). Maximum - the total allowable concentration of chromium (Cr) in drinking water should not exceed 0.05 mg / dm 3, and total iron (Fe) - 0,2 mg / dm 3 [2, Appendix 2].
Elevated levels of iron in the body leads to metabolic disorders due to the fact that, as a biologically active element forms complexes with conventional helatopodobnye metabolites; interacts with cell membranes by altering their permeability.
There are many methods of water purification from heavy metals, which include chemical, electrochemical, adsorption, ion exchange and other techniques. An important objective of wastewater treatment is the use of the most energy-saving methods, as well as the return of the extracted metals from the wastewater back into production.
A method of membrane separation, namely ultrafiltration, is simple and energy efficient. The method consists in passing the solution under pressure through the semipermeable membrane. The result is that over the membrane formed concentrate containing heavy metals, and under the diaphragm - the purified solution (permeate) [4, p. 326].
Work on clearing ordeal
Reviewers Register Log Urgent publication to publish your article on the publication of evidence now order a printed copy of the magazine requirements for the articles All magazine publishers Journal About Editorial standard countertop height Contact Information Archive Columns and languages publications Search Mobile Access Project Reviews
Tatyana Klimenko Vsevolodovna Cherkasy State Technological University Senior Lecturer, Department of Chemistry and Chemical Technology of Inorganic standard countertop height Compounds Abstract This article deals with the problems standard countertop height of extraction of heavy metals from wastewater standard countertop height and their impact on the human body. Our studies suggest that ultrafiltration is a simple, effective and energy-efficient wastewater treatment of chromium (VI) and iron, and the use of activated bentonite clays will increase the degree of purification of waste waters from chromium (VI) and offer it as a sorbent for industrial through cheap and readily available. These studies are relevant and brings new wastewater treatment process.
Klimenko Tatiana Vsevolodovna Cherkasy State Technological University Senior Lecturer, standard countertop height Department of Chemistry and Chemical Technology of Inorganic Substances Abstract This article focuses on the heavy metals extraction methods from wastewater and their impact on the human body. Our studies suggest that the ultrafiltration method is simple, effective and energy-efficient wastewater treatment of chromium (VI) and iron, and the use of activated bentonite clays will increase the degree of purification of waste water from chromium (VI) and offer it as an industrial sorbent for due to cheapness standard countertop height and availability. standard countertop height These studies are relevant and makes improvements standard countertop height to the wastewater treatment process.
Bibliography link to the article: Klimenko TV Wastewater from heavy metal ions // Modern scientific research and innovation. 2013. 11 [electronic resource]. URL: http://web.snauka.ru/issues/2013/11/28484 (date accessed: 01.08.2014).
Waste water containing heavy metals (industrial wastewater), are formed in the automotive and chemical industry, in the manufacture of electrochemical cells and processing of metal surfaces, in the electronics industry, in the printing on leather and other factories. They pose a great threat to the environment and to humans. [1]
The problem of removing heavy metals from wastewater is now especially relevant. Poorly treated waste water flows into natural water bodies, standard countertop height where the heavy metals accumulate in the water and sediments, thus becoming a source of secondary pollution. Heavy metal compounds relatively quickly standard countertop height spread over the volume of the water body. Partly they are precipitated as carbonates, sulfates, partially adsorbed onto mineral and organic sediments. The result is that the content of heavy metals in sediment is constantly increasing, and when the adsorption capacity is exhausted by precipitation, heavy metals enter the water, which leads to the environmental crisis. Penalties for discharge of heavy metals in the water are becoming tougher, but it does not solve the problem. [1]
Heavy metals ingested with food and water, accumulate there, because not excreted and cause various diseases. In small doses of iron, zinc and other metals vital because involved in different forms of metabolism, transfer, synthesis of substances. But at concentrations exceeding the maximum permissible these metals are harmful, so waste water qs cleaned of heavy metals.
Work has been done to clean up the waste water and artificial standard countertop height samples of iron (Fe) and chromium Cr (VI), which belong to the danger class 3 (dangerous). Maximum - the total allowable concentration of chromium (Cr) in drinking water should not exceed 0.05 mg / dm 3, and total iron (Fe) - 0,2 mg / dm 3 [2, Appendix 2].
Elevated levels of iron in the body leads to metabolic disorders due to the fact that, as a biologically active element forms complexes with conventional helatopodobnye metabolites; interacts with cell membranes by altering their permeability.
There are many methods of water purification from heavy metals, which include chemical, electrochemical, adsorption, ion exchange and other techniques. An important objective of wastewater treatment is the use of the most energy-saving methods, as well as the return of the extracted metals from the wastewater back into production.
A method of membrane separation, namely ultrafiltration, is simple and energy efficient. The method consists in passing the solution under pressure through the semipermeable membrane. The result is that over the membrane formed concentrate containing heavy metals, and under the diaphragm - the purified solution (permeate) [4, p. 326].
Work on clearing ordeal
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