An anaerobic reactor for treating sewage containing sludge

Abstract

A disclosed anaerobic reactor used for processing sludge-containing sewage comprises a container body, a water-inlet water-distribution system arranged at the bottom of the container body, and a three-phase separator arranged at the top of the container; the container body is disposed at an area between the water-inlet water-distribution system and the three-phase separator; the container body also is provided with a sludge bed area, and the sludge bed area is arranged in the container body in a tortuous way along a direction from top to bottom so as to form a water distribution gallery, and the sludge bed area is filled with particle sludge containing anaerobic microbes; sewage enters the bottom of the container body via the water-inlet water-distribution system, flows through the sludge bed area in a tortuous way from bottom to top and enables anaerobic microbes in the sludge bed area and sewage to have anaerobic reaction; and processed water generated after the anaerobic reaction is discharged from a water discharging port of the three-phase separator, a gas is held by a gas chamber of the three-phase separator, and sludge is deposited at the sludge bed area. Through the above execution mode, uniform water distribution is realized and sewage processing conditions are optimized, and thus sewage processing efficiency is improved, and the three-phase separator possesses relatively good operation stability.

Description

technical field [0001] The invention relates to the technical field of sewage treatment equipment containing sludge, in particular to an anaerobic reactor for treating sewage containing sludge. Background technique [0002] Sludge is an inevitable by-product in the process of urban sewage treatment and wastewater treatment, which contains a large amount of organic matter, nutrients and other components. Under the background of increasing energy and environmental pressure, anaerobic digestion of sludge has become one of the effective ways of sludge volume reduction and stabilization treatment due to its advantages of high processing load, low energy consumption, and bioenergy generation. [0003] In the prior art, an upflow anaerobic sludge bed is often used as a representative process for sludge anaerobic digestion, and its structure is simple. However, it has the following disadvantages in the actual operation process: (1) It is difficult to achieve uniform water distribut...

AI Technical Summary

Problems solved by technology

However, it has the following disadvantages in the actual operation process: (1) It is difficult to achieve uniform water distribution in large-scale reactors; (2) It is difficult to achieve better operational stability for three-phase separators

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