Preparing method of organic nutrient soil

Abstract

The invention discloses a preparing method of organic nutrient soil. The method comprises the steps that life or agriculture waste water is filtered through a filter screen and enters a device which is provided with four layers of adsorbents, the waste water is subjected to cycle treatment until the waste water meets the agricultural irrigation water standard, and the adsorbents are taken out for standby application; then the adsorbents which adsorb and contain a large amount of organic pollutants are matched with minor ingredients to conduct fermentation and prepare solid nutrient materials, and the solid nutrient materials are mixed with the soil to obtain the organic nutrient soil. According to the preparing method, the organic nutrient soil easily absorbs nutrition and is good in fertility and applied to agricultural production, and the production efficiency is improved; not only is purification treatment on polluting waste achieved, but also green circulation economy of resource development and utilization on the polluting waste is formed.

Description

technical field [0001] The invention relates to a method for preparing organic nutrient soil, which belongs to the technical field of recycling polluted waste. Background technique [0002] Since the reform and opening up, my country's economy and society have developed rapidly, the population has increased rapidly, and the development of industry and agriculture has become faster and faster. The subsequent discharge of industrial wastewater, agricultural sewage, and domestic sewage has increased, and lakes, rivers, oceans, and groundwater have been polluted. It is becoming more and more serious, especially in fresh water resources. Various harmful substances in drinking water sources in many places exceed the standard, which not only seriously damages the ecological environment, but also threatens the health of local residents; Pollution, and the treatment technology that can produce certain economic and social benefits has received extensive attention. [0003] Biochar tech...

AI Technical Summary

Problems solved by technology

[0004] The conventional method of biochar treatment of sewage is to use biochar to absorb the pollutants in the sewage and then discharge the sewage up to the standard. However, in these methods, the biochar that has adsorbed the pollutants in the sewage has not been scientifically and effectively disposed of. These biochar may Form new pollutants and cause secondary pollution to the environment

For example, "Application and Preparation of Sludge Biochar in Adsorbing Organic Pollutants or Ammonia Nitrogen in Sewage" (CN 106116090 A) introduces a method of pyrolyzing sludge into biochar and then adsorbing organic matter or ammonia nitrogen in sewage. Although the goal of sewage purification is achieved, the biochar that has adsorbed pollutants has not been treated, which may cause new pollution to the environment; "Sewage Biological Treatment Device Based on Activated Carbon Application of Boiling Water" (CN204588950 U) introduces a kind of activated carbon In the process of purifying sewage in the device designed by it, the disposal of activated carbon that adsorbs pollutants is not considered at the same time as purifying sewage, which may also cause new pollution to the environment

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