CN212610146U

CN212610146U - Domestic waste filtration liquid high efficiency processing integrative device

Info

Publication number: CN212610146U
Application number: CN202021186912.XU
Authority: CN
Inventors: 曾华社; 傅萍萍
Original assignee: Quanzhou City Environmental Protection Engineering Co ltd
Current assignee: Quanzhou City Environmental Protection Engineering Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-02-26
Anticipated expiration: 2030-06-23

Abstract

The utility model relates to a sewage treatment technical field especially relates to an integrative device of domestic waste filtration liquid high efficiency handling, including PH equalizing basin, coagulating sedimentation tank, upflow anaerobic sludge blanket, dish tubular reverse osmosis equipment, the PH equalizing basin includes surge tank, surge tank is equipped with first water inlet and first delivery port, the slope is equipped with the coarse strainer between first water inlet and the first delivery port, the higher one end of coarse strainer is close to first water inlet, the lower one end of coarse strainer is equipped with first drain, first delivery port leads to pipe and elevator pump and connects gradually coagulating sedimentation tank, upflow anaerobic sludge blanket, dish tubular reverse osmosis equipment.

Description

Domestic waste filtration liquid high efficiency processing integrative device

Technical Field

The utility model relates to a sewage treatment technical field especially relates to an integrative device of domestic waste filtration liquid high efficiency processing.

Background

The landfill leachate is high-concentration wastewater which is formed by deducting the saturated water holding capacity of garbage and a soil covering layer from water contained in the garbage in a garbage landfill, rain, snow and water entering the landfill and other water and passing through the garbage layer and the soil covering layer.

The small-sized landfill sites, the garbage incineration plants, the small-sized garbage treatment stations, the small and medium-sized garbage transfer stations and other treatment plants are dispersed, so that large-sized garbage leachate treatment plants are not convenient to construct for centralized treatment of garbage leachate, the garbage leachate is treated by a plurality of garbage leachate treatment plants of part of factories and is discharged illegally without reaching the standard or being treated, and great influence is caused on the environment.

Landfill leachate is different from municipal sewage, and generally, the COD concentration of landfill leachate is 10-100 times that of domestic sewage. And the pollutants are complex in type, the water quantity and water quality change greatly in different periods, and the leachate is the most important pollution source of underground water and causes serious pollution to the environment by contacting with soil, ground or surface water. At present, the treatment methods of domestic and foreign landfill leachate mainly comprise a biochemical method, a physicochemical method, a recharge method and the like. Although the biochemical treatment method has relatively low operation cost, the effluent is difficult to reach the standard. The leachate recirculation is the most economic treatment method for leachate, but the leachate treated by the method cannot be directly discharged. With the development of the technology, the membrane separation technology has been widely applied to the treatment of domestic sewage and municipal sewage, and is also applied to the treatment of landfill leachate at present. The membrane separation technology can efficiently retain pollutants and is simple to apply. By combining and applying several treatment methods, the landfill leachate can be reliably treated to reach the discharge standard.

SUMMERY OF THE UTILITY MODEL

Therefore, to foretell problem, the utility model provides an integrative device of liquid high-efficient handling is considered in domestic waste infiltration.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an integrative device of domestic waste filtration liquid high efficiency processing, includes PH equalizing basin, coagulating sedimentation tank, upflow anaerobic sludge bed, dish tubular reverse osmosis equipment, the PH equalizing basin includes the surge tank, the surge tank is equipped with first water inlet and first delivery port, the slope is equipped with the coarse strainer between first water inlet and the first delivery port, the higher one end of coarse strainer is close to first water inlet, the lower one end of coarse strainer is equipped with first drain hole, first delivery port leads to pipe and elevator pump and connects gradually coagulating sedimentation tank, upflow anaerobic sludge bed, dish tubular reverse osmosis equipment.

The improved PH adjusting tank is characterized in that an inner circulating pump and an outer circulating pump are arranged on the PH adjusting tank, the inner circulating pump pumps liquid from the bottom of the PH adjusting tank to flow back to the upper portion of the PH adjusting tank, and the outer circulating pump pumps the liquid in the PH adjusting tank and then flows back into the PH adjusting tank through a water ejector.

The improved water inlet is parallel to the coarse filter screen, and the lower side of the first water inlet is tightly attached to the coarse filter screen.

Further improve, be equipped with between coarse strainer and the first drain outlet and pile up the platform.

The improved disc tube type reverse osmosis device is provided with a concentrated solution outlet, and the concentrated solution outlet flows back to the coagulating sedimentation tank through a water pipe and a shielding pump.

By adopting the technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses a PH equalizing basin, the coagulating sedimentation tank, upflow anaerobic sludge blanket and dish tubular reverse osmosis equipment cooperation are used, at first, after prefiltering landfill leachate through the coarse strainer that locates in the PH equalizing basin and getting rid of the great solid impurity of granule in the infiltration liquid, carry out PH to it and adjust, improve the biodegradability of filtration liquid, then remove the fine suspended solid through the coagulating sedimentation tank, then through the massive SS that upflow anaerobic sludge blanket contains in landfill leachate, high concentration heavy metal, ammonia nitrogen, COD etc., pass through the infiltration of dish tubular reverse osmosis equipment at last, make the play water quality of water requirement reach the emission standard that "domestic waste landfill pollution control standard" stipulates;

2. the mixing of the liquid in the PH regulating tank can be accelerated by the arranged internal circulating pump, and meanwhile, the garbage leachate is more fully mixed by the arrangement of the external circulating pump and the water injector, so that a large amount of mist generated by acid-base neutralization is prevented from influencing the subsequent steps;

3. the first water inlet is parallel to the coarse strainer and is arranged close to the coarse strainer, so that the water inlet direction is parallel to the coarse strainer, the vertical or inclined water inlet can be reduced, particles in water are clamped on the coarse strainer due to gravity washing, the later cleaning is difficult, meanwhile, impurities on the coarse strainer can be more conveniently washed to the sewage discharge port, the filtering time is prolonged, and the cleaning frequency is reduced;

4. the accumulation table is arranged, so that the damage to the coarse filter screen caused by excessive accumulation and overweight of accumulated objects at the lower part of the coarse filter screen is prevented, and the service life of the coarse filter screen is prolonged;

5. the concentrated solution flows back to the upflow anaerobic sludge blanket to continue the reaction, and finally the aim of zero emission of the landfill leachate is achieved.

Drawings

FIG. 1 is a schematic process flow diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a PH adjusting tank according to an embodiment of the present invention.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 and 2, the embodiment provides an integrative device of domestic waste leachate high efficiency processing, including PH equalizing basin, coagulating sedimentation tank, upflow anaerobic sludge blanket, dish tubular reverse osmosis equipment, wherein, the PH equalizing basin includes regulating tank 11, regulating tank 11 is equipped with first water inlet 11a, first delivery port 11b and dosing port 11c, the slope is equipped with coarse strainer 12 between first water inlet 11a and the first delivery port 11b, the higher one end of coarse strainer 12 is close to first water inlet 11a, first water inlet 11a is hugged closely coarse strainer 12 with the downside of coarse strainer 12 parallel and first water inlet 11a and sets up, the lower one end of coarse strainer 12 is equipped with first drain 11d, be equipped with pile up platform 13 between coarse strainer 12 and the first drain 11d, dosing port 11c is connected with acidification device 14, dosing port 11c locates the coarse strainer 12 below, still be equipped with internal circulating pump 15 and external circulating pump 16 on the PH equalizing basin, wherein, internal circulating pump 15 draws the upper portion that liquid backward flow in to the PH equalizing basin from the bottom in the PH equalizing basin, external circulating pump 16 draws the liquid in the PH equalizing basin and flows back in the PH equalizing basin through water ejector 17, water ejector 17 is current structure, first delivery port 11b leads to pipe and elevator pump and connects gradually coagulating sedimentation tank, upflow anaerobic sludge bed, dish tubular reverse osmosis unit along the rivers direction, coagulating sedimentation tank.

In this embodiment, the dish tubular reverse osmosis equipment is equipped with the concentrate export, the concentrate export is through water pipe and canned motor pump backward flow to coagulating sedimentation pond.

It should be noted that, in this embodiment, the coagulation sedimentation tank, the upflow anaerobic sludge blanket, and the disc tube type reverse osmosis apparatus all adopt the existing structures, and are not described herein.

The utility model discloses a PH equalizing basin, the coagulating sedimentation pond, upflow anaerobic sludge blanket and dish tubular reverse osmosis equipment cooperation are used, at first, after going on prefiltering to landfill leachate through the coarse strainer of locating in the PH equalizing basin and getting rid of the great solid impurity of granule in the infiltration liquid, carry out PH regulation to it, improve the biodegradability of filtration liquid, then detach fine suspended solid through the coagulating sedimentation pond, then through a large amount of SS that contains in the upflow anaerobic sludge blanket with landfill leachate, high concentration's heavy metal, the ammonia nitrogen, COD etc., pass through the infiltration of dish tubular reverse osmosis equipment at last, make play water quality of water requirement reach the emission standard of "domestic waste landfill pollution control standard" regulation.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. an integrated device for efficient treatment of domestic waste leachate, characterized in that: comprising a pH adjustment tank, a coagulation sedimentation tank, an up-flow anaerobic sludge bed, a disc type reverse osmosis equipment, and the pH adjustment tank includes a conditioning water tank , the regulating water tank is provided with a first water inlet and a first water outlet, and a coarse filter screen is inclined between the first water inlet and the first water outlet, and the higher end of the coarse filter screen is close to the first water inlet. A water outlet, the lower end of the coarse filter screen is provided with a first sewage outlet, and the first water outlet is sequentially connected to a coagulation sedimentation tank, an up-flow anaerobic sludge bed, and a disc type reverse osmosis equipment through a water pipe and a lift pump. .

2. The integrated device for efficient treatment of domestic landfill leachate according to claim 1, characterized in that: the pH adjustment tank is provided with an inner circulation pump and an outer circulation pump, and the inner circulation pump is provided with an inner circulation pump from the bottom in the pH adjustment tank. The extracted liquid is returned to the upper part of the pH adjustment tank, and the liquid in the pH adjustment tank is extracted by the external circulation pump and returned to the pH adjustment tank through the water ejector.

3 . The integrated device for efficient treatment of domestic landfill leachate according to claim 2 , wherein the first water inlet is parallel to the coarse filter screen, and the lower side of the first water inlet is arranged in close contact with the coarse filter screen. 4 .

4 . The integrated device for efficient treatment of domestic waste leachate according to claim 3 , wherein a stacking platform is provided between the coarse filter screen and the first sewage outlet. 5 .

5. The integrated device for efficient treatment of domestic landfill leachate according to any one of claims 1 to 4, characterized in that: the disc type reverse osmosis equipment is provided with a concentrated liquid outlet, and the concentrated liquid outlet passes through The water pipe and canned pump return to the coagulation sedimentation tank.