A method for supporting treatment of waste gas and waste water in a hydrothermal carbonization system and producing nutrient water for crops

Abstract

The invention discloses a method matched for treating hydrothermal carbonization system waste gas and wastewater and producing crop nourishing water. The method comprises the following steps: collecting HTC system waste gas and wastewater, transferring the collected waste gas and wastewater into a biochemical reaction tank, adding biomass charcoal and an organic and inorganic composite additive, and regulating and controlling the temperature and the pH value of the biochemical reaction tank to obtain water containing organic carbon and other nutrients which can be easily absorbed by plants, that is crop nourishing water. The crop nourishing water can be used in irrigation and soilless culture directly or after being diluted, and also can be used as a raw material and a precursor to produce organic fertilizers and other products. The method can solve the waste gas and wastewater treatment bottleneck problem which restrict the promotion and the application of the HTC system, and can produce the product with high added values.

Description

technical field [0001] The invention relates to a method for supporting treatment of waste gas and waste water in a hydrothermal carbonization system and producing crop nutrient water, which belongs to the field of resourceful treatment of organic waste. Background technique [0002] my country's urbanization process continues to accelerate, and the number and scale of cities continue to expand. However, due to the serious lag in environmental protection infrastructure, the pollution of urban ecological environment by urban waste is becoming increasingly serious. At present, my country produces nearly 1 billion tons of urban waste every year, and it is still growing at an average annual rate of about 10%. It is predicted that by the end of 2014, my country's municipal solid waste production has reached 178.99 million tons, and the volume of removal and transportation has reached 176.77 million tons. According to the requirements of the state, by 2015, 30% of urban household...

AI Technical Summary

Problems solved by technology

The generation of the above waste gas and wastewater will not only cause secondary pollution to the environment, but also increase the production and operation costs of the hydrothermal carbonization system after subsequent treatment, limiting the commercialization and application of hydrothermal carbonization technology

Images