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Method for disinfection and Packaging of Barros and fertilizer production and by-products available to carry it out, and fertilizerand by-products obtained thereby
Method for disinfection and Packaging of Barros and fertilizer production and by-products available to carry it out, and fertilizerand by-products obtained thereby
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机译：消毒和包装Barros的方法和肥料生产及其可利用的副产物，以及由此获得的肥料和副产物
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摘要
This method is used to treat the sewage sludge produced in the biological, electrochemical or physicochemical treatment of the wastewater generated in the primary and secondary sedimentation processes, or the sewage sludge digested or anaerobic in the air. This includes the following steps: (a) mixing sewage sludge and average pH value with the first extremely extreme pH value substance, resulting in a significant change in pH value, and a significant increase in temperature through dilution and combination; (b) stopping disinfection by preventing temperature rise and pH value change in 10 to 30 minutes; (c) Addition of pre broken phosphate and / or nitrating minerals;(d) The second polar pH substance whose pH value is opposite to that of the first substance must be equal to or very close to the pH value of 7; (e) Transport the resulting mixture into a curing container and allow repair to be carried out for at least 30 to 2400 minutes until a neutral and semi-finished fertilizer free of Pathobiology is obtained; at the same time as step a;B,(c)D,(e) Due to the temperature rise of etapa (a) and the evaporation of water, the concentration of this neutral fertilizer and by-product is increased to a frozen particle product. In a preferential formula, the first substance is highly concentrated sulfuric acid, accounting for 60% to 108% by weight, The second substance is a high concentration aqueous solution with a pH value of 4 at the end of (a). One result of the invention is the treatment or remediation of sewage sludge, and the other isTo produce a product that can both regulate and fertilize The use of diluted heat and reactive heat not only produces disinfectants, but also makes them useful as fertilizers without the help of external heat sources.
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