SAFETY OF BUILDING SYSTEMS. ECOLOGICAL PROBLEMS OF CONSTRUCTION PROJECTS. GEOECOLOGY

ENVIRONMENTAL ASSESSMENT OF BARRIER CAPABILITIES OF SMALL MUNICIPAL WASTEWATER TREATMENT PLANTS IN VOLOGDA REGION

Vestnik MGSU 12/2012
  • Kulakov Artem Alekseevich - Vologda State University (VoGU) Candidate of Technical Sciences, Associate Professor of the Department of Water supply and Waste Water Treatment, Vologda State University (VoGU), 15 Lenina str., Vologda, 160000, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 182 - 191

The findings of the research project that encompasses 137 small municipal wastewater treatment plants (WWTP) are presented in the paper. The source data for the research is the official statistical reporting according to Form № 2-TP (water) submitted in 2010, as well as the information on completed and approved projects that demonstrate admissible discharge standards.
The method of environmental assessment of barrier capabilities of municipal WWTP based on six major indicators (TSS, BOD, N-NH4+, N-NO2-, N-NO3-, P-PO43-) is proposed to ensure compliance with the present-day environmental standards.
The maximal likelihood of incompliance with the pre-set standards is demonstrated by phosphorus phosphate (97 %), ammonium nitrogen (95 %) and nitrite nitrogen (79 %). The substances that demonstrate their maximal excessive content in the wastewater include phosphorus phosphate (its content exceeds the admissible standard 18-fold), ammonium nitrogen (21.7-fold excess) and nitrite nitrogen (7.6-fold excess).This overview indicates a low possibility of compliance of the content of N-NH4+, N-NO2-, and P-PO43- with the environmental standards that extend to biological WWTPs.
The highest relative excess of the admissible content of admixtures is typical for the plants that have a design capacity of 600-800 m3/day and that process 50-200 m3/day. The lowest relative excess of the admissible content of admixtures is typical for the plants that have a design capacity of over 1,000 m3/day and that process over 500 m3/day. The average relative excess of the admissible content of admixtures for all plants equals to 8.4 times.
The ecological assessment of the barrier capabilities of small municipal WWTPs has proven that their compliance with the standards of admissible content of N-NH4+, N-NO2-, and P-PO43- in the wastewater is impossible to attain in practice.

DOI: 10.22227/1997-0935.2012.12.182 - 191

References
  1. Doklad o sostoyanii i okhrane okruzhayushchey sredy Vologodskoy oblasti v 2009 godu [Report on Condition and Protection of the Environment in Vologda Region in 2009]. Pravitel’stvo Vologodskoy oblasti, departament prirodnykh resursov i okhrany okruzhayushchey sredy Vologodskoy oblasti [Government of Vologda Region, Department of Natural Resources and Environmental Protection of Vologda Region]. Vologda, 2010, 236 p.
  2. Federal’nyy zakon ot 10.01.2002 ¹ 7-FZ «Ob okhrane okruzhayushchey sredy» [Federal Law no. 7-FZ of January 10, 2002 “About Environmental Protection”].
  3. Metodika razrabotki normativov dopustimykh sbrosov veshchestv i mikroorganizmov v vodnye ob”ekty dlya vodopol’zovateley: prikaz MPR RF ot 17 dekabrya 2007 g. ¹ 333 [Methodology of development of standards of admissible discharges of substances and microorganisms into water bodies to be complied with by water consumers. Decree no. 333 issued by the Ministry of Natural Resources on December 17, 2007].
  4. Ponamoreva L.S. Rekomendatsii po primeneniyu «Metodiki razrabotki normativov dopustimykh sbrosov veshchestv i mikroorganizmov v vodnye ob”ekty dlya vodopol’zovateley» [Recommendations concerning development of standards of admissible discharges of substances and microorganisms into water bodies to be complied with by water consumers]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Engineering]. 2009, no. 2, pp. 4—15.
  5. Kulakov A.A., Lebedeva E.A., Umarov M.F. Issledovanie bar’ernykh vozmozhnostey traditsionnoy biologicheskoy ochistki stochnykh vod na osnove tekhnologicheskogo modelirovaniya [Research of Barrier Capabilities of Traditional Methods of Biological Treatment of Wastewater Using Process Modeling Techniques]. Ekologiya i promyshlennost’ Rossii [Ecology and Industry of Russia]. 2010, no. 11, pp. 33—36.
  6. Gogina E.S. Udalenie biogennykh elementov iz stochnykh vod [Removal of Biogenic Elements from the Wastewater]. Moscow, ASV Publ., 2010, 120 p.
  7. Federal’nyy zakon ot 07.12.2011 ¹ 416-FZ «O vodosnabzhenii i vodootvedenii» [Federal Law no. 416-FZ of December 07, 2011 “On Water Supply and Water Discharge”].
  8. Colmenarejo M.F., Rubio A., Sa?nchez E., Vicente J., Garc??a M.G., Borja R. Evaluation of Municipal Wastewater Treatment Plants with Different Technologies at Las Rozas, Madrid (Spain). Journal of Environmental Management. 2006, no. 81, pp. 399—404.
  9. Tsagarakis K.P., Mara D.D., Angelakis A.N. Wastewater Management in Greece: Experience and Lessons for Developing Countries. Water Science and Technology. 2001, no. 6, vol. 44, pp. 166—172.
  10. Tsagarakis K.P., Mara D.D., Nolan N.J., Angelakis A.N. Small Municipal Wastewater Treatment Plants in Greece. Water Science and Technology, 2000, no. 1, vol. 41, pp. 41—48.
  11. Directive 91/271/EEC of 21.05.1991. Urban waste water treatment.
  12. Kulakov A.A., Lebedeva E.A. Razrabotka inzhenernykh resheniy po modernizatsii ochistnykh sooruzheniy kanalizatsii na osnove tekhnologicheskogo modelirovaniya [Development of Engineering Solutions Aimed at Modernization of Wastewater Treatment Facilities]. Vodoochistka [Water Treatment]. 2011, no. 12, pp. 10—19.

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