Risk detection method of sludge in soil resource utilization

Abstract

A risk detection method for sludge in soil resource utilization comprises the steps: hazardous waste identification is conducted on the sludge, and if the sludge is not hazardous waste, carrying out pollutant detection and pathogen detection on the sludge; determining a target land utilization type of the sludge in soil resource utilization and a target sensitive land type under the land utilization type; analyzing pollutants and pathogens of the sludge in different exposure ways, and calculating the exposure amount of the pollutants and the exposure amount of the pathogens in a single exposure way; respectively carrying out health effect analysis on the pollutants of the sludge under different exposure paths, and determining pollutant parameters under the single exposure way; calculatingthe total carcinogenic risk and the total hazard quotient of a single pollutant in the sludge through all exposure ways; calculating a site sludge risk control value of the pollutants; and calculatinga pathogen site sludge risk control value. Consistent reference is provided for soil resource utilization of the sludge.

Description

technical field [0001] The invention relates to the field of sludge detection, in particular to a method for risk detection of sludge in soil resource utilization. Background technique [0002] With the improvement of residents' living standards and the development of industrial production, the total amount of sludge generated and the complexity of its composition are increasing. At the same time, the contradiction between the resource utilization of sludge and its environmental health risks has become more and more serious. people's attention. The current GB18918 "Pollutant Discharge Standards for Urban Sewage Treatment Plants" and GB / T23484 "Classification of Sludge Disposal for Urban Sewage Treatment Plants" control standards for pollutants in sludge can no longer fully meet the needs of my country's sludge treatment and pollution prevention. In order to promote the research and development, popularization and application of sludge treatment technology, promote project c...

AI Technical Summary

Problems solved by technology

However, there is still a lack of consistent risk assessment methods that directly address the resource utilization of sludge.

[0003] Sludge pollutants are mainly composed of heavy metals, organic pesticides and other organic pollutants. Under the new environmental pollution situation, the impact of pathogens (pathogenic bacteria, viruses and parasites, etc.) on public health has become increasingly prominent. Health risks have aroused concern, however, systematic pathogen detection and risk assessment urgently need to be supplemented and improved in sludge pollutant control

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