Cassava alcohol plant wastewater treatment and utilization method
A wastewater treatment and cassava alcohol technology, applied in water/sewage treatment, natural water body treatment, water/sewage multi-stage treatment, etc., to achieve the effect of reducing water consumption and energy consumption, reducing water consumption, and high load
Inactive Publication Date: 2021-01-15
CHINA GDE ENG
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[0004] The object of the present invention is to provide a kind of cassava alcohol plant wastewater treatment and utilization method, aiming to solve the deficiency of the existing cassava alcohol factory production wastewater treatment technical route
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[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0028] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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The invention provides a cassava alcohol plant wastewater treatment and utilization method. The cassava alcohol plant wastewater treatment and utilization method comprises the following steps: cassavawashing wastewater is treated by a first water inlet grid and a first grit chamber and then is recycled to a cassava washing procedure; the high-concentration production wastewater is treated by a second water inlet grid, a second grit chamber, an adjusting tank, a high-temperature anaerobic fermentation system, a flocculant adding device, a solid-liquid separation device, a ferrous ion adding device and a medium-temperature anaerobic fermentation system, and part of the treated effluent is disinfected and decolorized and then is reused in a slurry mixing process, the rest effluent with the factory low-concentration wastewater treated by a third water inlet grid are mixed, then a mixture is fed into a two-stage aerobic treatment system for treatment, one part of the treated effluent is recycled to a cassava washing process, one part of the treated effluent is recycled to factory miscellaneous water, and the rest effluent is treated by a membrane advanced treatment system, clear wateris recycled to a slurry stirring procedure, and a circulating cooling water system is used for supplementing water and desalted water is used for preparing station raw water. The method aims to overcome the defects of the existing cassava alcohol plant production wastewater treatment technical line.
Description
technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a method for treating and utilizing wastewater from a cassava alcohol factory. Background technique [0002] In the context of energy shortage and increasingly serious environmental pollution, fuel ethanol has been widely valued as a possible potential energy source. In recent years, the state has vigorously encouraged the development of non-food crops as raw materials to develop fuel ethanol. Among non-food crops, cassava has obvious advantages in the production of fuel ethanol. In the process of cassava alcohol production, the utilization level of raw materials is low, the water consumption per unit of product is high, and the high-concentration production wastewater such as waste mash produced in the distillation process is difficult to treat and other factors are the bottleneck problems restricting the ethanol fermentation industry. [0003] At prese...
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Login to View More IPC IPC(8): C02F9/14C02F103/36
CPCC02F9/00C02F1/001C02F2001/007C02F3/30C02F1/56C02F1/5236C02F1/50C02F1/444C02F1/442C02F1/725C02F1/722C02F2103/36
Inventor 王彩林梁锦朋胡海波唐芸何家俊赵常红
Owner CHINA GDE ENG