Method for treating garlic processing waste water

Abstract

The invention relates to a method for treating garlic processing waste water. The method for treating the garlic processing waste water includes feeding the waste water into a grid to remove coarse-grain sundries; draining the waste water from the grid and feeding the waste water into a vortex-type grit chamber to remove inorganic sand grains; draining the waste water out of the vortex-type grit chamber, feeding the waste water into a regulating basin and regulating the quality and the quantity of the waste water; draining the waste water out of the regulating basin, feeding the waste water into a micro-aerobic hydrolysis acidification pool and performing micro-aerobic aeration for the waste water; draining the waste water out of the micro-aerobic hydrolysis acidification pool, feeding the waste water into a combined type anaerobic baffled reaction tank and performing anaerobic biodegradation for the waste water; draining the waste water out of the combined type anaerobic baffled reaction tank, feeding the waste water into a biological aerated filter and performing aerobic treatment for the waste water; draining the waste water out of the biological aerated filter, feeding the waste water into a secondary sedimentation tank and separating mud from the water; draining the water from the secondary sedimentation tank, feeding the water into a coagulating basin and enabling the water to form large granular alum floc; draining the water out of the coagulating basin, feeding the water into a fiber disk filter and filtering the water; draining the water out of the fiber disk filter and disinfecting the water by an ultraviolet disinfection tank; concentrating sludge; dehydrating the sludge; and composting the sludge. The method for treating the garlic processing waste water has the advantages that the biochemical performance of the waste water is greatly improved, the efficiency of an integral waste water treatment system is improved, the system is reliable in running, drained water meets emission standards, the generated remaining sludge can be used for manufacturing sludge composting products, and accordingly waste resources are effectively utilized.

Description

technical field [0001] The invention relates to a wastewater treatment method, in particular to a garlic processing wastewater treatment method. Background technique [0002] my country is the main producer of garlic, and its annual output accounts for 1 / 3 of the world's total. In addition to supplying domestic consumption, fresh garlic and various processed products are also exported to the United States, Russia, ASEAN, Japan, South Korea and Southeast Asian countries in large quantities. Deep processing of garlic can greatly improve its economic benefits. [0003] In recent years, the processing and production of garlic slices has formed a large scale. The production processes of garlic slices in domestic enterprises mainly include: selection, cleaning, slicing, rinsing, dehydration (drying), moisture balance, sorting and packaging, among which cleaning, rinsing and dehydration process , will produce a large amount of waste water. The wastewater not only has a high orga...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that garlic wastewater is not convenient for processing, the present invention provides a method for treating garlic processing wastewater, which greatly reduces the amount of organic matter while removing part of the organic matter. The biochemical performance of wastewater is improved, thereby improving the efficiency of the entire wastewater treatment system; the composite anaerobic baffle reaction tank is connected with the biological aerated filter, and the two treatment unit structures have high biomass. The stable and reliable operation of the wastewater treatment system and the discharge of the effluent are guaranteed; the effluent of the secondary sedimentation tank is coagulated, filtered and disinfected through the process unit to further remove the pollutants in the water and ensure the quality of the effluent water; the remaining sludge produced is made into Sludge composting products effectively realize the resource utilization of waste

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