Search

CN-224212528-U - Be used for wet rubbish leachate preprocessing device

CN224212528UCN 224212528 UCN224212528 UCN 224212528UCN-224212528-U

Abstract

The utility model belongs to the technical field of high-concentration organic wastewater treatment, and particularly relates to a pretreatment device for wet garbage leachate, which comprises an oil separation regulating tank, wherein an oil scraping machine, an air stirring system and a heating system are arranged in the oil separation regulating tank, the oil scraping device is used for scraping floating oil in the oil separation regulating tank, the heating system is used for regulating the temperature in the oil separation regulating tank, the oil separation regulating tank is communicated with a reaction tank, the reaction tank is used for treating leachate by adding chemical agents, a first stirrer and a dosing system are arranged in the reaction tank, the reaction tank is communicated with a centrifugal dehydrator, the centrifugal dehydrator is connected with a collecting part, and the collecting part is used for respectively treating objects produced by the centrifugal dehydrator.

Inventors

  • NIU JIANGTAO
  • WU JUNXING
  • DING ZHIYA

Assignees

  • 上海环境保护有限公司

Dates

Publication Date
20260508
Application Date
20250410

Claims (9)

  1. 1. The utility model provides a be used for wet rubbish leachate preprocessing device, includes oil removal equalizing basin (1), wherein be provided with oil scraper (11), air stirring system (13) and heating system (12) in oil removal equalizing basin (1), oil scraper (11) are used for striking off the oil slick in oil removal equalizing basin (1), heating system (12) are used for adjusting the temperature in oil removal equalizing basin (1), oil removal equalizing basin (1) intercommunication has reaction tank (2), reaction tank (2) are used for handling the leachate through adding the chemical agent, be provided with first mixer (22) and dosing system (24) in reaction tank (2), reaction tank (2) intercommunication has centrifugal dehydrator (3), centrifugal dehydrator (3) are connected with the collecting part, and the collecting part is used for handling the object of centrifugal dehydrator (3) output respectively.
  2. 2. The pretreatment device for wet garbage leachate according to claim 1, wherein the centrifugal dehydrator (3) is a three-phase centrifugal dehydrator for separating oil, water and sludge simultaneously.
  3. 3. The pretreatment device for wet garbage leachate according to claim 2, wherein the collecting part comprises a waste oil collecting barrel (31) and a nitrogen and phosphorus collecting barrel (32), oil separated by the centrifugal dehydrator (3) enters the waste oil collecting barrel (31), and sludge separated by the centrifugal dehydrator (3) enters the nitrogen and phosphorus collecting barrel (32).
  4. 4. A pretreatment device for wet waste leachate according to claim 3, characterized in that the waste water separated from the centrifugal dehydrator (3) enters a sedimentation tank (4), and the sedimentation tank (4) is provided with a second stirrer (41), a second pH meter (43) and a second dosing system (42).
  5. 5. The pretreatment device for wet garbage leachate according to claim 1, wherein the oil scraper (11) is automatically operated, and the operation is started after a certain time interval, and the time interval and the operation time are independently adjustable.
  6. 6. The pretreatment device for wet garbage leachate according to claim 1, wherein the heating system (12) adopts steam heating, and comprises a steam switch valve, wherein the steam switch valve is connected with a temperature sensor, and the temperature sensor is used for controlling the temperature to be 55-60 ℃.
  7. 7. The pretreatment device for wet garbage leachate according to claim 1, wherein the air stirring system (13) is in a normally open state for stirring wastewater.
  8. 8. The pretreatment device for wet garbage leachate according to claim 1, wherein the oil separation regulating tank (1) and the reaction tank (2) are respectively provided with a first liquid level meter (14) and a second liquid level meter (21).
  9. 9. The pretreatment device for wet garbage leachate according to claim 1, wherein a lifting pump (15) is connected between the oil separation regulating tank (1) and the reaction tank (2), and a screw pump (25) and a flowmeter (26) are sequentially connected between the reaction tank (2) and the centrifugal dehydrator (3).

Description

Be used for wet rubbish leachate preprocessing device Technical Field The utility model belongs to the technical field of high-concentration organic wastewater treatment, and particularly relates to a pretreatment device for wet garbage leachate. Background The wet garbage leachate refers to high-concentration wastewater with high organic matters and high ammonia nitrogen generated during garbage stacking and landfill. The liquid contains various pollutants, and if the liquid is directly discharged or is discharged without reaching standards, serious pollution is caused to water resources, soil and the like, so that the whole ecological environment is influenced; along with the improvement of the living standard of people, the wet garbage production is increased increasingly, high-concentration garbage leachate can be produced in the squeezing process of a garbage transfer station, the intermittent discharge is carried out, the water quantity is smaller, the oil and nitrogen and phosphorus concentration is high, and the treatment difficulty is high; At present, the research and application of the treatment of the garbage leachate are mainly focused on chemical coagulation, coagulation air flotation, biochemical treatment and the like. Disclosure of utility model The present utility model is directed to a pretreatment device for wet garbage leachate, which is used for solving the problems of the prior art. In order to achieve the technical purpose, the utility model adopts the following technical scheme: The utility model provides a be used for wet rubbish leachate preprocessing device, includes the oil removal equalizing basin, be provided with oil scraper, air mixing system and heating system in the oil removal equalizing basin, oil scraper is used for striking off the oil slick in the oil removal equalizing basin, heating system is used for adjusting the temperature in the oil removal equalizing basin, the oil removal equalizing basin intercommunication has the reaction tank, the reaction tank is used for handling leachate through adding chemical agent, be provided with first mixer and dosing system in the reaction tank, the reaction tank intercommunication has centrifugal dehydrator, centrifugal dehydrator is connected with the collecting part, and the collecting part is used for handling respectively the object of centrifugal dehydrator output. Further defined, the centrifugal dehydrator is a three-phase centrifugal dehydrator for separating oil, water and sludge simultaneously. Further defined, the collecting part comprises a waste oil collecting barrel and a nitrogen and phosphorus collecting barrel, oil separated by the centrifugal dehydrator enters the waste oil collecting barrel, and sludge separated by the centrifugal dehydrator enters the nitrogen and phosphorus collecting barrel. Further defined, wastewater separated from the centrifugal dehydrator enters a sedimentation tank equipped with a second agitator, a second pH meter, and a second dosing system. Further defined, the oil scraper is automatically operated, and the operation is started after a certain time interval, and the interval time and the operation time can be independently adjusted. Further defined, the heating system adopts steam heating, and comprises a steam switch valve, wherein the steam switch valve is connected with a temperature sensor, and the temperature sensor is used for controlling the temperature to be 55-60 ℃. Further defined, the air agitation system is in a normally open state for agitation of the wastewater. Further limited, the oil separation regulating tank and the reaction tank are respectively provided with a first liquid level meter and a second liquid level meter. Further limited, a lifting pump is connected between the oil separation regulating tank and the reaction tank, and a screw pump and a flowmeter are sequentially connected between the reaction tank and the centrifugal dehydrator. Compared with the prior art, the utility model has the following advantages: According to the utility model, grease and nitrogen and phosphorus in the leachate are recovered, so that the recycling is realized, waste is changed into valuable, and energy is effectively saved. The technology is practical, advanced, stable and reliable, and the treated water quality is favorable for further treatment of wastewater. The utility model has the advantages of low operation cost, impact resistance, convenient management, simple operation and maintenance, continuous work of each part, no need of frequent replacement of the parts and effective reduction of the operation cost. Drawings The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings; FIG. 1 is a schematic diagram of the oil removal regulating reservoir of the present utility model; FIG. 2 is a schematic structural view of a reaction tank according to the present utility model; FIG. 3 is a schematic diagram of the centrifu