Bypass-type constant-temperature internal-circulation anaerobic sludge bed reactor

Abstract

The invention relates to a bypass-type constant-temperature internal-circulation anaerobic sludge bed reactor, and aims at improving processing capability and impact resistant composite capability on grease-containing high-density organic wastewater, improving biogas stirring effect and optimizing flow state change in sludge beds. The bypass-type constant-temperature internal-circulation anaerobic sludge bed reactor comprises a water distribution system, a first cycle system and a second cycle system, and is characterized in that: a high-resistance annular pipe is employed for distributing water, a shunting pipe is arranged in an anaerobic sludge area in the reactor, the lower opening of the shunting pipe is arranged corresponding to the water distribution hole in the annular water distribution coil pipe; water in the pipe is subjected to baffling when flowing to a baffler of a first-grade separator and forms a circulating flow in a large sludge area; water entering a second-grade separator is subjected to baffling when flowing to a baffler, flows back to the inlet of the shunting pipe via an internal-circulation pipe, and forms a second-grade circulating flow; the water flowing out from the water distribution hole, the water coming from the circulating flow in the large sludge area and the water coming from the circulating flow in the internal-circulation pipe are mixed and diluted, and the mixture enters the shunting pipe. Because of a temperature-keeping temperature-adjusting device in the reactor, the bypass-type constant-temperature internal-circulation anaerobic sludge bed reactor is capable of effectively improving the temperature condition of the reaction, improving processing efficiency and reducing the restriction influence caused by the temperature condition for processing wastewater.

Description

technical field [0001] The invention relates to an improved high-flow rate internal circulation anaerobic sludge bed reactor, especially for treating slaughterhouses, oil washing tanks, oil pressing and other high-concentration organic wastewater containing oil—a split-flow constant temperature internal circulation anaerobic sludge bed reactor. Background technique [0002] With the acceleration of industrialization, the treatment of high-concentration organic wastewater has increasingly become the focus of research in the field of sewage treatment. According to the water quality characteristics and treatment difficulties of high-concentration organic wastewater, the main treatment methods used include physical methods, chemical methods, biological methods, and combination and matching treatment technologies of various methods. Among them, biological treatment has the advantages of stable effect, low cost, and easy operation. , are widely used. [0003] At present, the mos...

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Problems solved by technology

At the same time, UASB also has some defects of its own. For example, the suspended solids in the influent need to be properly controlled and should not be too high, generally controlled below 100mg / L; the flow state in the sludge bed is quite different, and there is a short flow phenomenon, which affects the treatment. Ability; Poor adaptability to sudden changes in water quality and load, poor impact resistance, etc.

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