Method for producing insecticidal fertilizer by pesticide waste liquid processed by activated sludge bacteria particles
A technology for activated sludge and pesticides, applied in sewage/sludge fertilizer, dewatering/drying/concentrated sludge treatment, alkaline orthophosphate fertilizer, etc. Good economic and environmental benefits
Inactive Publication Date: 2012-06-06
广东绿宝佳股份有限公司
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Problems solved by technology
On the other hand, my country's urban sewage treatment plants have been built one after another, and a large amount of activated sludge is produced by the sewage plants. The main disposal of sludge is landfill. So far, a better way has not been found; activated sludge contains Fourth, the solid matter of the water is mainly active bacteria, which contains nitrogen, phosphorus, potassium and other fertilizer components and a large amount of organic matter. After treatment and processing, it is an organic fertilizer with high fertilizer efficiency. Therefore, a more practical method of activated sludge should also be studied. Feasible comprehensive utilization issues in order to resource them
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Embodiment Construction
[0016] Embodiments of the present invention provide a method for treating pesticide waste liquid with activated sludge bacteria particles to produce insecticidal fertilizers. The specific process flow is as shown in the accompanying drawings, including the following steps:
[0017] 1. Airflow drying: directly connect the outlet of the activated sludge of the sewage plant to the inlet of the airflow dryer, use hot flue gas as the drying medium, and keep the cell wall of the activated sludge in a basically intact state to remove the sludge Most of the free water and intermittent water retain the molecularly bound water of the sludge cells, and the water content of the sludge is dried from about 78% to 48-52%;
[0018] 2. Solar drying: Send the activated sludge dried by airflow into the solar plastic film shed for solar drying, so that the free water and intermittent water in the sludge are basically removed, and the water content of the sludge after re-drying is 28-33%;
[0019...
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Abstract
The invention discloses a method for producing insecticidal fertilizer by pesticide waste liquid processed by activated sludge bacteria particles, comprising: first, mixing activated sludge and diatomite to prepare porous particles which are used for absorbing organo-phosphorus pesticide waste liquid; and leading the pesticide waste liquid to be in accordance with the biochemical treatment condition, and producing the dual-purpose insecticidal fertilizer. The method is a way for solving reclamation of the activated sludge, and a new method is provided for treating the waste liquid of an organo-phosphorus pesticide plant. The method has the advantages of treatment of a waste with another waste, simple method and equipment as well as easy implementation, can produce the dual-purpose insecticidal fertilizer product, and gains better economic and environmental protection benefits, thus being widely applicable to treating the organo-phosphorus pesticide waste liquid.
Description
technical field [0001] The invention relates to a method for producing insecticidal fertilizer from sludge, in particular to a method for producing insecticidal fertilizer by treating pesticide waste liquid with activated sludge granules. Background technique [0002] my country is a large agricultural country, and the production of pesticides and fertilizers occupies a very important position in the national economy. Pesticides are divided into two categories: inorganic pesticides and organic pesticides. Inorganic pesticides mainly contain mercury and arsenic, which are highly toxic and have been gradually replaced by organic pesticides; Mainly include: organophosphorus (chlorine, nitrogen, sulfur, metal) pesticides and pesticides containing nitro, amide, nitrile, triazine and other groups, among which there are the most varieties of organophosphorus, and the varieties of organophosphorus pesticides include trichlorfon, Dichlorvos, dimethoate, methyl parathion, methamidophos,...
Claims
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IPC IPC(8): C05F7/00C05G3/02C02F11/12C05B7/00C05C9/00C05D1/02C05G3/60
CPCY02A40/20Y02W10/37
Inventor 温奕区
Owner 广东绿宝佳股份有限公司