Production technology of fresh ginger wastewater purifying agent mainly based on COD and SS

Abstract

The invention relates to the technical field related to the production and processing of ginger products, and mainly relates to a production technology of a fresh ginger wastewater purifying agent mainly based on COD and SS. The wastewater purifying agent comprises the following raw materials in parts by weight: 3-7 parts of benzalkonium chloride, 3-6 parts of calcium hydroxide, 3-8 parts of copper sulfate, 8-15 parts of modified activated carbon, 3-7 parts of polyethylene glycol, 2-5 parts of sodium silicate, 6-10 parts of quartz powder, 1-5 parts of poly R-3-hydroxybutyrate, 4-9 parts of polyacrylamide, 2-5 parts of polyferric sulfate, 4-7 parts of sodium isocyanurate, 7-12 parts of an effervescent disintegrant, 3-6 parts of sodium carbonate and 8-12 parts of modified glutinous rice flour. The wastewater purifying agent provided by the invention has a very strong flocculation effect, is high in removal rate of suspended solids and heavy metals, has a good biological bactericidal effect, and greatly reduces the harm of secondary pollution, so that the wastewater purifying agent is more environmentally-friendly.

Description

technical field [0001] The invention relates to the technical field related to the production and processing of ginger products, in particular to a production process of a ginger wastewater purifier mainly based on COD and SS. Background technique [0002] The whole process of sampling, transportation, storage and analysis of wastewater monitoring is strictly carried out in accordance with the "Technical Specifications for Water and Wastewater Testing" (HJ / T91-2002). control measures. [0003] In the modern water treatment process, coagulation-flocculation treatment technology is still the technical solution with the highest utilization rate and better treatment effect. [0004] The core of the process is to make various fine impurities or toxic dissolved substances in the sewage It precipitates in the form of adsorption and aggregation, so it is easy to separate it from the water body by solid-liquid separation or filtration technology to achieve water purification. [0...

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Problems solved by technology

[0005] Under normal circumstances, the efficiency of this scheme is relatively high, but if it encounters sewage with complex pollution components and relatively large pollution load, the implementation of this process will encounter many problems, mainly due to ① the theoretical Some physical, chemical or chemical reasons that have not yet been clarified lead to poor or impossible completion of the coagulation-flocculation process. Even if this process is barely completed, effective solid-liquid separation or filtration processes cannot be carried out; ②Flocculation-sedimentation process After the end, the stability of the alum flowers is poor, and the implementation of the solid-liquid separation technology will be seriously affected after being broken; If the difference is relatively large, it may cause flocculation difficulties and make the purification work fail, and once the coagulation-flocculation process fails, the wastewater will no longer be treated by the conventional coagulation-flocculation process, and other special treatments can only be considered solution, resulting in a great waste of economy and processing time

[0006] In addition, the traditional coagulation-flocculation process generally needs to be equipped with corresponding solid-liquid separation or filtration schemes to prepare for dehydration of the residue. There are certain requirements for the physical properties of the residue, such as strippability, which means that the residue is dehydrated after dehydration. After the process, whether it can be easily detached from the surface of the machine (such as filter press, centrifuge) or the surface of the filter medium, if there is no good peelability, it will greatly reduce the use efficiency of the solid-liquid separation machine, seriously affecting Integrity of purification process

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