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Device and method applicable to anaerobic treatment of solid and liquid mixed sewage of breeding field

A mixed sewage and anaerobic treatment technology, applied in anaerobic digestion treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems affecting the sustainability of aquaculture, high water content, difficult treatment, etc. problems, achieve the effect of reducing sludge loss, low cost, and avoiding clogging

Inactive Publication Date: 2010-02-10
TIANJIN INST OF AGRI RESOURCES & ENVIRONMENTAL
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Problems solved by technology

The precipitated dung and feed need to be treated by secondary fermentation to solve the pollution problem, and because of its high water content, the treatment is difficult and affects the sustainability of the breeding industry

Method used

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  • Device and method applicable to anaerobic treatment of solid and liquid mixed sewage of breeding field
  • Device and method applicable to anaerobic treatment of solid and liquid mixed sewage of breeding field
  • Device and method applicable to anaerobic treatment of solid and liquid mixed sewage of breeding field

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Embodiment Construction

[0032] Below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure and features provided by the present invention are described in detail as follows:

[0033] like Figure 1-Figure 4 As shown, a device suitable for anaerobic treatment of solid and liquid mixed sewage in farms includes a reactor main body 1, a three-phase separator 2, a water distributor 3 and a liquid level control system 4; it is characterized in that:

[0034]The reactor main body 1 is cylindrical, and the top is provided with a top cover 11; one side of the upper part of the reactor main body 1 is provided with an exhaust port 12, which is connected with a pressure regulating valve 42, and the other side is correspondingly provided with a water outlet 13; A three-phase separator 2 is arranged on the inner upper part of the reactor main body 1; the baffle a21 and the overflow tank bottom plate 26 of the three-phase separator 2 are fixed on the inner w...

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Abstract

The invention relates to a device and a method applicable to anaerobic treatment of solid and liquid mixed sewage of a breeding field, the treatment device comprises a main body of a reactor, a three-phase separator, a water distributor and a liquid level control system, wherein, the main body of the reactor is cylindrical; the structural setting of the water distributor can adapt to fecal residues and sewage containing higher suspended solids; the three-phase separator adopts the design of a dual-layer structure and is not provided with a biological filter part for improving the passing capacity of sewage and dirt and avoiding blockage phenomenon; the liquid level control system regulates a sludge interface by controlling pressure of a gas chamber, water inlet and slag discharge; the mainbody of the reactor is provided with an acidified sludge layer, a methanation sludge layer and a floating sludge layer from the bottom and is equipped with sludge internal circulation, thereby reducing sludge loss amount and greatly improving treatment capacity; and the treatment device can operate stably under high loads of 15-22kgCOD / m<3>.d at normal temperature. The device is the novel devicewhich is applicable to intensive resource utilization of the fecal residues and the sewage of the breeding field and characterized by low investment, stable operation, simple operation, low treatmentcost and the like.

Description

technical field [0001] The invention relates to a device and method for anaerobic treatment of sewage, in particular to a device and method suitable for anaerobic treatment of solid-liquid mixed sewage in farms. Background technique [0002] In recent years, anaerobic treatment, as an energy-saving high-concentration organic wastewater treatment process, has been widely used at home and abroad, and has become a hot technology that countries all over the world are competing to research and develop. In particular, the treatment device that forms granular sludge in the device is the most widely used, and is called an epoch-making high-efficiency anaerobic treatment device. In the anaerobic treatment method, the anaerobic sludge bed can be divided into three parts in terms of structure and function: the first part is the raw water supply system, which consists of a raw water delivery pipe and a water distributor that can evenly supply the water flow on the device section . The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F11/04
CPCY02E50/343C02F3/2846C02F2209/42C12M21/04C12M27/20C12M29/04C12M41/40Y02E50/30
Inventor 吴迪赵秋高贤彪李玉华赵琳娜
Owner TIANJIN INST OF AGRI RESOURCES & ENVIRONMENTAL
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