Treatment method of landfill penetrating fluid

Abstract

The invention discloses a treatment method of landfill penetrating fluid, and belongs to the technical field of treatment of penetrating fluid. The method comprises the following steps: S1, solid impurity removal of the penetrating fluid; S2, ammonia nitrogen removal treatment of the penetrating fluid; S3, primary anaerobic treatment of the penetrating fluid; S4, secondary anaerobic treatment of the penetrating fluid; S5, aeration treatment of the penetrating fluid; S6, disinfection of the penetrating fluid; S7, sludge treatment. Anaerobic organic matters inside the penetrating fluid are degraded by adopting secondary anaerobic treatment; a UASB (Upflow anaerobic sludge blanket) reactor and a ABR (Anaerobic baffled) reactor are respectively used by the two times of anaerobic treatment; the method is extremely suitable for treatment of high-concentration wastewater; loss of sludge loss is relatively small; no mixing and stirring device is needed; a sludge blockage problem is not caused; the maintenance cost is reduced; a more economical effect is realized; through treating aerobic organic matters inside the penetrating fluid by adopting an SBR (Sequencing batch reactor activated sludge) aeration treatment mode, the two times of anaerobic treatment and one time of aerobic treatment are combined, and the organic matters inside the penetrating fluid can be more completely treated.

Description

technical field [0001] The invention relates to the technical field of permeate treatment, in particular to a treatment method for landfill permeate. Background technique [0002] With the increase in the number of cities and the population in our country, urban waste is also increasing rapidly. According to statistics, the annual production of waste has reached 150 million tons, with an average growth rate of 9% per year, of which 7 billion tons have not been processed, accounting for 8.3% of the total land in my country. It is estimated that in the next 20 years, the discharge of solid waste will occupy 85% of the land, and there are serious garbage pollution problems in most parts of the country. The treatment of municipal solid waste should follow the principles of reduction, recycling and harmlessness. At present, there are mainly three treatment methods: landfill, composting and incineration. [0003] The landfill method refers to the use of natural terrain or artifi...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a landfill permeate treatment method in order to solve the above-mentioned landfill leachate treatment cost high and incomplete treatment, which has the combination of secondary anaerobic treatment and aerobic treatment of microorganisms. The effect is better, the advantage of reducing cost by using UASB reactor and ABR reactor for anaerobic treatment

Images