Air pollution investigation by organic compounds in the city

© 2018 Nasyrov et al. In this paper carry out assessment of level of impurity of atmospheric air in the city is executed by light organic compounds. The nature of change of content of these ingredients in atmospheric air in the direction of their possible source is studied. The composition of the organic substances which are present at atmospheric air is investigated. Sampling of air on these components is made. The analysis on the gas chromatograph and processing of the received results is made. Calculation of quantitative content of light organic compounds in tests of atmospheric air is made. The character of a gradient of concentration of light organic compounds towards the city of Nizhnekamsk is defined. For the purpose of assessment of level of impurity of atmospheric air the complex index of impurity of the atmosphere for 23 trial platforms is determined by five priority volatile organic compounds. Offers on decrease in content of light organic compounds in atmospheric air are developed

The problem of disposal sludge treatment plants

© 2016, International Journal of Pharmacy and Technology. All rights reserved.Consider the features of the formation and disposal of sludge. It is noted that the methods of sludge treatment in digesters or throw them in the sludge beds are not perfect. The presence of high concentrations of nitrogen and phosphorus in sewage sludge would allow its use as a fertilizer, but it is necessary to consider that may contain heavy metals that contaminate the environment. It noted a huge amount of sludge produced per year in Russia. A preferred method of disposal of sewage sludge sludge storage in the fields. This method results in the exclusion of large areas. Sludge fields pose a threat to the environment due to the high content of dangerous viruses, bacteria, harmful gases, hazardous chemicals In this work it was studied the composition of the sludge. It has been determined that the precipitation contained a significant amount of organic material that is fat, protein, carbohydrate, etc. The aqueous phase of the sludge is characterized by a neutral environment. The values obtained for BOD5, reflecting the total content of organic substances in the water, allow to judge that this water is classified as very dirty water. Measurements of pollution sludge with heavy metals. The measurements of the mass of content of heavy metals in the aqueous phase of the sludge (soluble form) and in dry matter (total content) showed that the concentration of heavy metals in the dry sediment is significantly higher than in the aqueous phase of the sludge. The measurement results on the toxicity of the sludge lead to the conclusion that sludge have acute toxic effects and are 4 cash danger The results of research on sludge oil content allow us to speak about the excesses of this indicator

Sorption concentration of arsenic ions by magnetite

© The author(s). This paper is focused on the possibility of using magnetite powders obtained by chemical and plasma-chemical method for sorption concentration of arsenic ions. Processes of arsenic concentration by two-site sorption in magnetite-water system have been studied, and the optimal conditions for concentration have been defined. In static mode, effects of pH, temperature and contact time on the adsorption process have been studied. As a result, a method for pre-sorption concentration has been proposed, allowing reducing the lower limit of the atomic absorption determination of arsenic content

Air pollution investigation by organic compounds in the city

© 2018 Nasyrov et al. In this paper carry out assessment of level of impurity of atmospheric air in the city is executed by light organic compounds. The nature of change of content of these ingredients in atmospheric air in the direction of their possible source is studied. The composition of the organic substances which are present at atmospheric air is investigated. Sampling of air on these components is made. The analysis on the gas chromatograph and processing of the received results is made. Calculation of quantitative content of light organic compounds in tests of atmospheric air is made. The character of a gradient of concentration of light organic compounds towards the city of Nizhnekamsk is defined. For the purpose of assessment of level of impurity of atmospheric air the complex index of impurity of the atmosphere for 23 trial platforms is determined by five priority volatile organic compounds. Offers on decrease in content of light organic compounds in atmospheric air are developed

The problem of disposal sludge treatment plants

© 2016, International Journal of Pharmacy and Technology. All rights reserved.Consider the features of the formation and disposal of sludge. It is noted that the methods of sludge treatment in digesters or throw them in the sludge beds are not perfect. The presence of high concentrations of nitrogen and phosphorus in sewage sludge would allow its use as a fertilizer, but it is necessary to consider that may contain heavy metals that contaminate the environment. It noted a huge amount of sludge produced per year in Russia. A preferred method of disposal of sewage sludge sludge storage in the fields. This method results in the exclusion of large areas. Sludge fields pose a threat to the environment due to the high content of dangerous viruses, bacteria, harmful gases, hazardous chemicals In this work it was studied the composition of the sludge. It has been determined that the precipitation contained a significant amount of organic material that is fat, protein, carbohydrate, etc. The aqueous phase of the sludge is characterized by a neutral environment. The values obtained for BOD5, reflecting the total content of organic substances in the water, allow to judge that this water is classified as very dirty water. Measurements of pollution sludge with heavy metals. The measurements of the mass of content of heavy metals in the aqueous phase of the sludge (soluble form) and in dry matter (total content) showed that the concentration of heavy metals in the dry sediment is significantly higher than in the aqueous phase of the sludge. The measurement results on the toxicity of the sludge lead to the conclusion that sludge have acute toxic effects and are 4 cash danger The results of research on sludge oil content allow us to speak about the excesses of this indicator

The problem of disposal sludge treatment plants

© 2016, International Journal of Pharmacy and Technology. All rights reserved.Consider the features of the formation and disposal of sludge. It is noted that the methods of sludge treatment in digesters or throw them in the sludge beds are not perfect. The presence of high concentrations of nitrogen and phosphorus in sewage sludge would allow its use as a fertilizer, but it is necessary to consider that may contain heavy metals that contaminate the environment. It noted a huge amount of sludge produced per year in Russia. A preferred method of disposal of sewage sludge sludge storage in the fields. This method results in the exclusion of large areas. Sludge fields pose a threat to the environment due to the high content of dangerous viruses, bacteria, harmful gases, hazardous chemicals In this work it was studied the composition of the sludge. It has been determined that the precipitation contained a significant amount of organic material that is fat, protein, carbohydrate, etc. The aqueous phase of the sludge is characterized by a neutral environment. The values obtained for BOD5, reflecting the total content of organic substances in the water, allow to judge that this water is classified as very dirty water. Measurements of pollution sludge with heavy metals. The measurements of the mass of content of heavy metals in the aqueous phase of the sludge (soluble form) and in dry matter (total content) showed that the concentration of heavy metals in the dry sediment is significantly higher than in the aqueous phase of the sludge. The measurement results on the toxicity of the sludge lead to the conclusion that sludge have acute toxic effects and are 4 cash danger The results of research on sludge oil content allow us to speak about the excesses of this indicator

The problem of disposal sludge treatment plants

© 2016, International Journal of Pharmacy and Technology. All rights reserved.Consider the features of the formation and disposal of sludge. It is noted that the methods of sludge treatment in digesters or throw them in the sludge beds are not perfect. The presence of high concentrations of nitrogen and phosphorus in sewage sludge would allow its use as a fertilizer, but it is necessary to consider that may contain heavy metals that contaminate the environment. It noted a huge amount of sludge produced per year in Russia. A preferred method of disposal of sewage sludge sludge storage in the fields. This method results in the exclusion of large areas. Sludge fields pose a threat to the environment due to the high content of dangerous viruses, bacteria, harmful gases, hazardous chemicals In this work it was studied the composition of the sludge. It has been determined that the precipitation contained a significant amount of organic material that is fat, protein, carbohydrate, etc. The aqueous phase of the sludge is characterized by a neutral environment. The values obtained for BOD5, reflecting the total content of organic substances in the water, allow to judge that this water is classified as very dirty water. Measurements of pollution sludge with heavy metals. The measurements of the mass of content of heavy metals in the aqueous phase of the sludge (soluble form) and in dry matter (total content) showed that the concentration of heavy metals in the dry sediment is significantly higher than in the aqueous phase of the sludge. The measurement results on the toxicity of the sludge lead to the conclusion that sludge have acute toxic effects and are 4 cash danger The results of research on sludge oil content allow us to speak about the excesses of this indicator

Sorption concentration of arsenic ions by magnetite

© The author(s). This paper is focused on the possibility of using magnetite powders obtained by chemical and plasma-chemical method for sorption concentration of arsenic ions. Processes of arsenic concentration by two-site sorption in magnetite-water system have been studied, and the optimal conditions for concentration have been defined. In static mode, effects of pH, temperature and contact time on the adsorption process have been studied. As a result, a method for pre-sorption concentration has been proposed, allowing reducing the lower limit of the atomic absorption determination of arsenic content

Sorption concentration of arsenic ions by magnetite

© The author(s). This paper is focused on the possibility of using magnetite powders obtained by chemical and plasma-chemical method for sorption concentration of arsenic ions. Processes of arsenic concentration by two-site sorption in magnetite-water system have been studied, and the optimal conditions for concentration have been defined. In static mode, effects of pH, temperature and contact time on the adsorption process have been studied. As a result, a method for pre-sorption concentration has been proposed, allowing reducing the lower limit of the atomic absorption determination of arsenic content

Sorption concentration of arsenic ions by magnetite

© The author(s). This paper is focused on the possibility of using magnetite powders obtained by chemical and plasma-chemical method for sorption concentration of arsenic ions. Processes of arsenic concentration by two-site sorption in magnetite-water system have been studied, and the optimal conditions for concentration have been defined. In static mode, effects of pH, temperature and contact time on the adsorption process have been studied. As a result, a method for pre-sorption concentration has been proposed, allowing reducing the lower limit of the atomic absorption determination of arsenic content