Conditioning agent for sludge solidification and preparing method and application thereof

Abstract

The invention provides a conditioning agent for sludge solidification and a preparing method and application thereof. The conditioning agent for sludge solidification is composed of a microbial flocculant NII4, metallic oxides Na2O, Al2O3, Fe2O3, CaO and MgO, nonmetal oxides SiO2 and SO3, a NaOH solution and sodium diethyldithiocarbamate. The preparing and using method of the conditioning agent for sludge solidification includes the steps that the microbial flocculant NII4 adopts NII4 to serve as a strain; saccharose is used as a best carbon source; yeast cream+urea+(NH4)2SO4 is used as a bestnitrogen source; the temperature is 30 DEG C; the pH ranges from 7 to 8, and culture time is 72 h. The metallic oxides and the nonmetal oxides need to be roasted at the high temperature, and have therequired activity, the metallic oxides and the nonmetal oxides and the NaOH solution are prepared according to determined components and determined mass components, the metallic oxides and the nonmetal oxides need to be ground to the required fineness, and are used in cooperation with the sodium diethyldithiocarbamate solution, and the conditioning agent can be prepared. According to conditioningagent for sludge solidification and the preparing method and application thereof, conditioning is carried out before sludge solidification, and an endogenic environmental condition conducive to sludge solidification is constructed.

Description

technical field [0001] The invention relates to a conditioning agent for sludge solidification in the field of water environment, a preparation method and application thereof. Background technique [0002] In recent years, with the rapid advancement of the country's urbanization and industrialization, the amount and types of pollutant discharge in water bodies have increased year by year, and the runoff has decreased year by year. The discharge of major pollutants is far greater than the environmental capacity of rivers, which has affected the national economy and society. of sustainable development. The implementation of systematic and comprehensive management of rivers, lakes and reservoirs to fundamentally improve the water environment has become a major event that is highly concerned by the society and strongly expected by the masses. With the rapid development of industry and agriculture in the eight major river basins in my country, especially the river network water ...

AI Technical Summary

Problems solved by technology

[0004] The traditional sludge solidification process is no longer suitable for the current social and economic development rate: it takes too long, takes up a large area, and the solidification process is not thorough, easy to secondary sludge, and secondary pollution, especially the heavy metals that pollute the sludge have not been effectively treated.

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