Disinfecting of the leachate of solid waste landfills with the application of hydrobiological cleaning

International Scientific Conference «AGRITECH-2019: Agribusiness, Environmental Engineering and Biotechnologies»

农业科学;生态环境科学;生物科学

Kostarev, S.N.^1^2^3 ; Sereda, T.G.^1^4 ; Sidorova, K.A.^5 ; Kochetova, O.V.^6

Perm State Agro-Technological University Named after Academician D N Pryanishnikov, ePetropavlovskaja St. 23, Perm

614990, Russia^1

Perm Military Institute of National Guard Troops of the Russian Federation, Gremjachij log St. 1, Perm

614030, Russia^2

Perm National Research Polytechnic University, Komsomolski Avenue 29, Perm

614990, Russia^3

Russian Presidential Academy of National Economy and Public Administration, Perm Branch, Gagarina Boulevard 10, Perm

614990, Russia^4

Northern Trans-Ural SAU, Republic St. 7, Tyumen

625003, Russia^5

Perm Institute of the FPS of Russia, Karpinskogo St. 125, Perm

614012, Russia^6

关键词: Biogenic elements;    Method of calculation;    Municipal solid waste (MSW);    Natural vegetation;    Organic pollution;    Pathogenic bacterium;    Solid waste landfill;    Special structure;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/315/5/052008/pdf
DOI  :  10.1088/1755-1315/315/5/052008

来源: IOP

【 摘 要 】

Methodological and technical approaches to cleaning of the leachate of the municipal solid waste (MSW) on hydrobiological constructions are offered. The purpose of work was justification of cleaning of drains of MSW by means of community of plants (including natural vegetation of grounds and dumps of MSW). The major factors influencing design solutions of hydrobiological constructions for cleaning of drains of MSW are shown. It is shown that cleaning of drains of MSW requires cleaning in three-stage ponds. On a first stage the shallow ponds no more than 0.5 m in depth for a destruction of organic pollution by means of saprophytic bacteria, utilization of biogenic elements with use of a complex of microalgas and disinfectings of drains due to formation of food chains, and removals of pathogenic bacteria are provided. On a second stage ponds with planting of water vegetation are provided deep-water (not less than 0.5 m). For three-stage cleaning of drains after a second stage as a part of hydrobiological constructions biochannels are provided. The method of calculation of a response time of water at each step of cleaning and the area of a mirror of ponds is presented. Hydraulic loading proceeding from the area of landing of gidromakrofit and a daily consumption of the purified water is calculated. For decrease in an index of BOD before dumping of drains into the superficial reservoirs the special structure of biocanals is provided. Basic elements of biochannels known in biomeliorative practice are presented in article. The technique of definition of a hydraulic radius necessary for calculation of driving of water is given in channels.