Double-tower type anaerobic reactor capable of controlling quality of output water

Abstract

The invention discloses a double-tower type anaerobic reactor capable of controlling quality of output water. The anaerobic reactor comprises a main tank, a water distributing pipe, a three-phase separator and an auxiliary tank. A center pipe is arranged in the auxiliary tank. A water inlet is formed in the bottom of the auxiliary tank. The upper portion of the center pipe is immersed into water. A water inlet channel is reserved in the lower portion of the center pipe. The water inlet is communicated with the water distributing pipe through a circulating water pump. The water distributing pipe is arranged at the bottom of the main tank. The three-phase separator is arranged on the upper portion of the main tank and communicated with the center pipe through a separator air pipe. The upper portion of the main tank is communicated with the upper portion of the auxiliary tank through a circulating pipe. The top of the main tank is communicated with the top of the auxiliary tank through a biogas communicating pipe. A biogas blow-down pipe and a pressure releaser are arranged at the top of the main tank. An inclined pipe settling pond is connected to a water outlet of the main tank. A sludge outlet of the inclined pipe settling pond is connected with a sludge inlet of the main tank through a screw pump. The anaerobic reactor operates stably, and is low in energy consumption, small in occupied area and large in volumetric loading rate, and the water quality of the output water can be adjusted according to the follow-up anaerobic requirement.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to a double-tower anaerobic reactor with controllable water quality. Background technique [0002] Biological treatment of sewage is divided into aerobic, anoxic and anaerobic biological processes. Compared with aerobic and anoxic processes, anaerobic processes have the following advantages: [0003] 1. Aerobic needs to consume a lot of oxygen and consume a lot of energy. Anaerobic only needs to pump the sewage into the anaerobic system to use the biological reaction of anaerobic bacteria to remove a large amount of organic matter. [0004] 2. At the same time, by-product biogas and granular sludge are produced. After biogas desulfurization, it can be used for cogeneration of heat and power or fed into boilers to offset part of energy consumption. Granular sludge can be sold as initial sludge or supplementary sludge for other anaerobic projects . [0005] 3. The anaerobic COD remov...

AI Technical Summary

Problems solved by technology

Due to the high and uncontrollable rising flow rate of IC, the three-phase separator has a large burden, and sludge run-off occurs from time to time, resulting in the loss of granular sludge and abnormal operation of the reactor. At the same time, the IC manufacturing process is more complicated and the cost is higher.

[0009] Moreover, the above-mentioned reactors have weak self-control ability, low load impact resistance and biological toxicity resistance, large land occupation and high investment, poor separator effect, serious mud run-off, uncontrollable effluent water quality, etc.

Images