[01] E. Zhumartov, Architecture and Building Faculty, Kazakh National Technical University Named After K. I. Satpayev, Almaty, Republic of Kazakhstan. [02] K. T. Ospanov, Architecture and Building Faculty, Kazakh National Technical University Named After K. I. Satpayev, Almaty, Republic of Kazakhstan. [03] D. Andraka, Department of Sanitary Engineering Systems, Bialystok Technical University, Bialystok, Poland.

This article presents the results of laboratory and pilot studies on biogas from a mixture of liquid manure and wastewater. The results showed that by adding cow manure in sewage sludge can intensify the process of anaerobic digestion. Thus, an increase of the yield of biogas reactor. According to the results of laboratory and semi-experimental studies found that the optimum fermentation parameters are pH - 6,75-7,45, alkalinity - 48-100 mEq/L and the content of CO2 in the biogas should be between 26-40%. And the best time boundary fermentation are 5-10 days at a humidity of 90-96% and 17-20% loading dose.

Biogas, Anaerobic Digestion, Manure, Volatile Fatty Acids (VFAs), Digesters, Methane Production

[01] Banks C, Chesshire M, Heaven S, Arnold R. Anaerobic digestion of sourcesegregated domestic food waste: performance assessment by mass and energy balance. Bioresour Technol 2011;102:612e20. [02] E. Neyens, J. Baeyens, A review of thermal sludge pre-treatment processes to improve dewaterability, J. Hazard. Mater. 98 (1–3) (2003) 51–67. [03] Prade T, Scensson S-E, Mattsson J. Energy balances for biogas and solid biofuel production from industrial hemp. Biomass Bioenergy 2012;40:36e52. [04] Ward A, Hobbs P, Holliman P, Jones D. Optimisation of the anaerobic digestion of agricultural resources. Bioresour Technol 2008;99:7928e40. [05] R.T. Haug, D.C. Stuckey, J.M. Gossett, P.L. Mac Carty, Effect of thermal pretreatment on digestibility and dewaterability of organic sludges, J. Water Pollut. Control Fed. (1978) 73–85. [06] Zhang XH, Deng SH, Wu J, Jiang WJ (2010) A sustainability analysis of a municipal sewage treatment ecosystem based on energy. Ecol Eng 36:685–696 [07] Zhumartov E.B. Improvement of equipment and technology of sewage treatment in small sewerage systems – Doctor’s thesis abstract, 2010. KazNTU, Almaty, 40 pages. [08] Chen I.K., Voral V.H , Hashimoto A.G. Methane production from agricultural residuals. A short Review. // Symposium on chemical from Cellulosic Materials. National meeting of the American Chemical Society.-Houston.- Texas, -1980 . March. [09] Giinter L.I. The role of carbohydrates, fats and proteins in gas generation at fermentation of a sewer sludge in digesters. - In book:-Urban sewerage. -M, 1961.-ed. 6.-Page 158-163. [10] Abramov A.V. Drachikova E.S. Nasedkina E.V. Research on composition of the supernatant generated at thermal treatment of a sewage sludge. - Tp. Ying-ta/VODGEO, 1976. - ed. 59 . [11] Matvienko N. I. Dobrovolsky Zh. K. Karpenko S. N. Processing of a sewage sludge by thermal methods. - In book: Progressive decisions in the field of sewage treatment. Kharkov, 1972. [12] Turovsky I.S. Bukreeva T.E. Processing of a sewage sludge and solid waste from household //Water supply and sanitary equipment, 1986. - No. 7. Page 18-21.