Potato starch wastewater treatment process

A technology for wastewater treatment and potato starch, which is applied in the food industry wastewater treatment, sedimentation treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of long start-up period, substandard effluent, waste of wastewater resources, etc., and achieve operating costs. Low cost, short start-up cycle and small facility investment

Active Publication Date: 2018-12-07
南阳市固德威机械装备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of waste water treatment in small and medium-sized potato starch, and to solve the problems of large investment in sewage treatment equipment, long start-up period, waste of waste water resources, substandard effluent and high operating costs in the process of waste water treatment

Method used

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Examples

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the examples, but the protection scope of the present invention is not limited to the scope expressed in the examples.

[0021] Example: sweet potato starch processing waste water treatment with sweet potato as raw material, about 50 tons of sweet potato is processed every day, and the processing cycle is 30 days. The final production volume is about 100 tons, and the extracted wastewater after separation enters the transfer tank. At this time, the COD concentration is about 10000 mg / L, and then enters the launder from the outlet of the transfer pool. The launder area is about 100 square meters, the width is 50 cm, the length is 200 meters, and the height 24cm, multiple tanks are used in series, the launder is built next to the collection and sedimentation tank, and is used as a conveying channel for waste water. In the middle of the launder, it is about 10 meters away from the outlet of the transf...

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Abstract

The invention relates to the technical field of starch wastewater treatment, and particularly relates to a treatment process for potato starch production wastewater. Starch extraction wastewater is pretreated by addition of an acidity regulator, flocculation lumps are formed; and a part of the flocculation lumps is precipitated at the bottom of a flow tank during flowing; the wastewater is naturally placed in a wastewater collection tank for more than 120 days, and then enters a wastewater filter tank for performing filtration treatment; a flocculant is added, precipitation is performed for 2-3 hours after stirring; and the wastewater after flocculation treatment enters an anaerobic system and an aerobic biochemical system in order to further purify the water quality to meet a discharge standard. Objects of the potato starch wastewater treatment process are to solve the problem of wastewater treatment in small and medium-sized potato starch, and to solve the problems of large investment, long start-up period, waste of waste water resources, non-standardized water discharge and high operation cost of sewage treatment equipment in a wastewater treatment process.

Description

technical field [0001] The invention relates to the technical field of starch wastewater treatment, in particular to a treatment process for potato starch production wastewater. Background technique [0002] Classified according to the source of starch raw materials, potato starch can be divided into tapioca starch, sweet potato starch, potato starch and other varieties. Since the processing technology and raw material properties of banana taro, kudzu root and potato starch are similar, their waste water has common characteristics and the treatment method is the same . [0003] Sweet potatoes, also known as sweet potatoes, are perishable and should not be stored for a long time. The deep processing of sweet potatoes can solve the phenomenon of a large number of rotten potatoes caused by improper storage of fresh potatoes. The refined starch of sweet potatoes can be processed in different depths to produce hundreds of valuable products, and the value-added is about 10-30 tim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30C02F103/32
CPCC02F1/001C02F1/52C02F1/56C02F1/66C02F3/34C02F9/00C02F2001/007C02F2101/30C02F2103/32C02F2301/08
Inventor 杨峰杨圃安阳
Owner 南阳市固德威机械装备有限公司
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