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CN-224199261-U - Low-temperature wastewater anaerobic treatment integrated system

CN224199261UCN 224199261 UCN224199261 UCN 224199261UCN-224199261-U

Abstract

The utility model discloses an integrated system for anaerobic treatment of low-temperature wastewater, which comprises an adjusting tank, a heating tank and a reaction tank. The regulating tank is provided with an acid-alkali liquid inlet pipe, a dosing pipe and a first stirring mechanism for realizing wastewater quality regulation, a steam pipe at the bottom of the heating tank is matched with a temperature sensor and a control module for realizing accurate temperature control, a coil pipe section of the steam outlet pipe realizes waste heat recovery, the reaction tank is connected with a calcified sludge circulating pipe for multistage treatment of calcified sludge through a gravity separation tank and a centrifugal separation tank, and a pipeline between the heating tank and the reaction tank is provided with a mixing mechanism and a scale inhibitor adding pipe for preventing pipeline scaling. The utility model solves the problems of low anaerobic treatment efficiency, difficult calcified sludge treatment, easy scaling of equipment and the like in a low-temperature environment through the cooperative work of a plurality of modules, has the characteristics of high treatment efficiency, low energy consumption and stable operation, and can be widely applied to the field of low-temperature wastewater treatment.

Inventors

  • JIN XIAOCHUN

Assignees

  • 湖北金庄科技再生资源有限公司

Dates

Publication Date
20260505
Application Date
20250530

Claims (9)

  1. 1. The anaerobic treatment integrated system for the low-temperature wastewater comprises an adjusting tank (1), a heating tank (2) and a reaction tank (3), and is characterized in that an acid liquid inlet pipe (4) and a dosing pipe (5) are arranged on the adjusting tank (1), a first stirring mechanism (8) is arranged in the adjusting tank (1), and the adjusting tank (1) is connected with the heating tank (2) through a first conveying pipe (9); The bottom of the heating pool (2) is provided with a steam pipe (11), and the heating pool (2) is connected with the reaction pool (3) through a second conveying pipe (16); a calcified sludge circulating pipe (20) is arranged on the reaction tank (3), and a gravity separation tank (22) and a centrifugal separation tank (23) are arranged on the calcified sludge circulating pipe (20); A mixing mechanism (19) is arranged on a pipeline between the heating tank (2) and the reaction tank (3), and a scale inhibitor adding pipe (18) is arranged on the mixing mechanism (19).
  2. 2. The anaerobic treatment integrated system for low-temperature wastewater according to claim 1, wherein a materialized water pipe (6) and a sewage pipe (7) are arranged on the side wall of the regulating tank (1); the side wall of the regulating tank (1) is also provided with an acid liquid inlet pipe (4) and a dosing pipe (5).
  3. 3. The anaerobic treatment integrated system for low-temperature wastewater according to claim 1, wherein the first conveying pipe (9) is provided with a first conveying pump (10), the second conveying pipe (16) is provided with a second conveying pump (17), and the input end of the calcified sludge circulating pipe (20) is provided with a third conveying pump (21).
  4. 4. An integrated system for anaerobic treatment of low-temperature wastewater according to claim 3, wherein said scale inhibitor addition pipe (18) and mixing means (19) are arranged between the second transfer pump (17) and the input of the second transfer pipe (16).
  5. 5. The anaerobic treatment integrated system for low-temperature wastewater according to claim 1, wherein the steam pipe (11) is provided with a steam flow control valve (111), the side wall of the heating tank (2) is provided with a temperature sensor (12), the temperature sensor (12) is connected to the control module (13), and the control module (13) is also connected with the steam flow control valve (111).
  6. 6. The anaerobic treatment integrated system for low-temperature wastewater according to claim 1 or 5, wherein the top of the heating tank (2) is provided with a steam outlet pipe (14), the steam outlet pipe (14) is provided with a coil pipe section (141), the coil pipe section (141) is arranged through a water tank (15), the lower part of the side wall of the water tank (15) is provided with a water inlet pipe (151), and the upper part of the side wall of the water tank (15) is provided with a water outlet pipe (152).
  7. 7. The anaerobic treatment integrated system for low-temperature wastewater according to claim 1, wherein the calcified sludge circulation pipe (20) is sequentially provided with a gravity separation tank (22) and a centrifugal separation tank (23) along the conveying direction, calcified sludge outlet pipes are arranged at the bottoms of the gravity separation tank (22) and the centrifugal separation tank (23), and a fourth conveying pump (24) is arranged between the centrifugal separation tank (23) and the output end of the calcified sludge circulation pipe (20).
  8. 8. The anaerobic treatment integrated system for low-temperature wastewater according to claim 1, wherein the mixing mechanism (19) comprises a static mixer (25) and a dynamic stirring joint (26), and a second stirring mechanism (27) is arranged in the dynamic stirring joint (26).
  9. 9. An integrated system for anaerobic treatment of low-temperature wastewater according to claim 8, wherein said static mixer (25) is an SK type static mixer.

Description

Low-temperature wastewater anaerobic treatment integrated system Technical Field The utility model relates to the technical field of sewage treatment, in particular to a low-temperature wastewater anaerobic treatment integrated system. Background In the field of sewage treatment, anaerobic treatment technology is widely applied to the treatment of high-concentration organic wastewater due to the advantages of low energy consumption, low sludge yield, recoverable energy sources (such as methane) and the like. However, when the treatment temperature is below 25 ℃, the activity of anaerobic microorganisms may be significantly reduced, resulting in a slow reaction rate, a decrease in treatment efficiency, and even an unstable treatment effect. Meanwhile, a large amount of calcium and magnesium plasma contained in the wastewater is easy to combine with carbonate and phosphate to form insoluble salts in the anaerobic reaction process, so that the scaling of pipelines and equipment is caused, the normal operation of the system is influenced, and the maintenance cost and the energy consumption of the equipment are increased. The existing anaerobic treatment system for low-temperature wastewater generally has the defects that firstly, effective regulation on the water quality of the wastewater is lacking, the survival condition of anaerobic microorganisms in a low-temperature environment cannot be improved pertinently, secondly, the temperature control means is single, the optimal temperature interval of anaerobic reaction is difficult to maintain accurately, thirdly, calcified sludge treatment capacity is weak, a single precipitation or separation mode is often adopted, calcified sludge cannot be removed efficiently, sludge is accumulated in the system, the reaction efficiency is affected, fourthly, scale inhibition measures of pipelines and equipment are insufficient, blockage is easily caused by scale formation, and the operation stability and the service life of the system are reduced. Disclosure of Invention The utility model aims to solve the technical problems of low-temperature wastewater anaerobic treatment integrated system, which can solve the technical problems of low treatment efficiency and unstable operation caused by insufficient water quality regulation, inaccurate temperature control, low calcified sludge treatment efficiency and easy scaling of pipeline equipment in the existing low-temperature wastewater anaerobic treatment system. In order to solve the technical problems, the utility model adopts the technical scheme that the low-temperature wastewater anaerobic treatment integrated system comprises an adjusting tank, a heating tank and a reaction tank, wherein an acid liquid inlet pipe and a chemical adding pipe are arranged on the adjusting tank, a first stirring mechanism is arranged in the adjusting tank, and the adjusting tank is connected with the heating tank through a first conveying pipe; The bottom of the heating pool is provided with a steam pipe, and the heating pool is connected with the reaction pool through a second conveying pipe; the reaction tank is provided with a calcified sludge circulating pipe, and the calcified sludge circulating pipe is provided with a gravity separation tank and a centrifugal separation tank; And a mixing mechanism is arranged on a pipeline between the heating tank and the reaction tank, and a scale inhibitor adding pipe is arranged on the mixing mechanism. In a preferred scheme, a materialized water pipe and a sewage pipe are arranged on the side wall of the regulating tank; The side wall of the regulating tank is also provided with an acid liquid inlet pipe and a dosing pipe. In the preferred scheme, be equipped with first delivery pump on the first conveyer pipe, be equipped with the second delivery pump on the second conveyer pipe, calcified sludge circulating pipe's input is equipped with the third delivery pump. In a preferred embodiment, the scale inhibitor addition pipe and the mixing mechanism are arranged between the second transfer pump and the second transfer pipe inlet. In the preferred scheme, be equipped with the steam flow control valve on the steam pipe, the heating bath lateral wall is equipped with temperature sensor, and temperature sensor is connected to control module, and control module still is connected with the steam flow control valve. In the preferred scheme, the heating bath top is equipped with the steam exit tube, is equipped with the coil pipe section on the steam exit tube, and the coil pipe section passes the water tank setting, and water tank lateral wall lower part is equipped with the inlet tube, and water tank lateral wall upper portion is equipped with the outlet pipe. In the preferred scheme, the calcified sludge circulating pipe is sequentially provided with a gravity separation tank and a centrifugal separation tank along the conveying direction, the bottoms of the gravity separation tank and the centrifugal sep