EXPERIMENTAL STUDIES RESULTS OF WASTEWATER TREATMENT FROM NITROGEN COMPOUNDS TECHNOLOGY USING IMMOBILIZED MICROORGANISMS

2012 ◽  
Vol 9 (3) ◽  
pp. 25-31
Author(s):  
В. C. Жукова ◽  
Л. А. Саблій
Keyword(s):  
Wastewater Treatment ◽  
Experimental Studies ◽  
Nitrogen Compounds ◽  
Immobilized Microorganisms

Perspective Biomass Carrier for Anaerobic Processing Systems of Organic Waste AIC

2020 ◽  
Vol 67 (1) ◽  
pp. 148-155
Author(s):  
Anatoliy V. Fedotov ◽  
Viktor S. Grigoriev ◽  
Dmitriy A. Kovalev ◽  
Andrey A. Kovalev
Keyword(s):  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Specific Surface ◽  
Organic Waste ◽  
Porous Ceramic ◽  
Experimental Studies ◽  
Ceramic Materials ◽  
Porous Ceramics ◽  
Developed Surface ◽  
Highly Porous

To speed up the wastewater treatment under aerobic conditions and to optimize the processes of anaerobic wastewater treatment in digesters, immobilization technologies of microorganisms and enzymes on solid carriers are used. Ceramic carriers based on aluminosilicates and alumina are one of the promising inorganic biomass carriers. (Research purpose) To study the structure of porous ceramic biomass carriers for anaerobic processing of organic waste and evaluate the prospects for their use. (Materials and methods) The substrate for anaerobic digestion was a mixture of sediments of the primary and secondary sewage sumps of the Lyubertsy treatment facilities. K-65 cattle feed was used to ensure the constancy of the composition of organic substances in substrates as a cosubstrate. The authors used the method of low-temperature nitrogen adsorption of Bruner-Emmett-Teller to study the pore structure and specific surface of solid carriers on a specific surface analyzer Quntachrome Autosorb-1. (Results and discussion) The main characteristics (specific surface, volume of micro- and mesopores, predominant pore radius, water absorption and others) of chamotte foam lightweight and highly porous corundum ceramics were determined. It was revealed that ceramic materials with a developed surface and electrically conductive material provided an increase in biogas yield by 3.8-3.9 percent with an increase in methane content by an average of 5 percent. (Conclusions) The results of anaerobic digestion showed a positive effect of both a conductive carrier and highly porous ceramic materials on the process of anaerobic bioconversion of organic waste into biogas. It is advisable to expand experimental studies on the use of a conductive carrier with a developed surface based on highly porous ceramics.

scholarly journals Phytoremediation efficiency of duckweed communities for mining enterprises wastewater treatment from nitrogen compounds

2019 ◽  
Vol 1399 ◽  
pp. 055044
Author(s):  
Denis S Petrov ◽  
Vladimir S Kuznecov ◽  
Igor K Suprun ◽  
Maria A Zhuravkova ◽  
Margarita A Solnyshkova
Keyword(s):  
Wastewater Treatment ◽  
Nitrogen Compounds

Evaluation of the Effectiveness of the Use of Enzyme Complexes in the Process of Biological Treatment of Wastewater from Pulp and Paper Enterprises

2018 ◽  
Vol 22 (6) ◽  
pp. 15-19
Author(s):  
E.H. Sakaeva ◽  
L.V. Rudakova
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Beneficial Effect ◽  
Activated Sludge ◽  
Biological Treatment ◽  
Experimental Studies ◽  
Pulp And Paper ◽  
Technological Scheme ◽  
Biological Wastewater Treatment ◽  
Enzyme Complexes

The results of experimental studies on the evaluation of the possibility of using enzyme complexes in the biological treatment of waste water from pulp and paper enterprises are presented. The use of enzyme complexes will increase the efficiency of wastewater treatment by COD and BOD, and will also have a beneficial effect on the hydrochemical and hydrobiological characteristics of activated sludge. Experimental studies have determined the points of introduction of enzyme complexes into the technological scheme of biological wastewater treatment.

scholarly journals EXPERIMENTAL STUDIES OF BIOCHEMICAL GAS TREATMENT IN THE WORKING AREA OF CLOSED WASTEWATER TREATMENT PLANTS

2021 ◽  
Vol 112 ◽  
pp. 25-28
Author(s):  
V.Yu. Belousova ◽  
◽  
N.V. Kondakova ◽  
S.N. Reznikova ◽  
N.S. Serpokrilov ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Sulfur Dioxide ◽  
Wastewater Treatment Plants ◽  
Experimental Studies ◽  
Filter Material ◽  
Biologically Active ◽  
Technological Parameters ◽  
Biochemical Purification ◽  
Gas Treatment ◽  
High Concentrations

The results of the study of gas emissions from blocked wastewater treatment plants are presented. During the experiment, high concentrations of sulfur dioxide were detected. The analysis of methods for reducing the concentration of pollutants in the air of the working area of the aeration station was carried out. It is proposed to use a biochemical purification using a biofilter with a load of bark and biohumus. A model of the installation was constructed. To determine the technological parameters of the biofilter considered different types of combinations (height, moisture, particle size) of the carrier biomass and supporting layer of gravel, the effective processing time of the gas mixture. A decrease in sulfur dioxide, hydrogen sulfide, and formaldehyde was found. Additional advantages of the applied biologically active filter material are given.

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