CN101672068B

CN101672068B - Water draining method for plain type landfill

Info

Publication number: CN101672068B
Application number: CN2009100911225A
Authority: CN
Inventors: 郭祥信; 徐文龙
Original assignee: Urban Construction Design & Research Institute
Current assignee: China Urban Construction Design and Research Institute Co Ltd
Priority date: 2009-08-12
Filing date: 2009-08-12
Publication date: 2011-01-05
Anticipated expiration: 2029-08-12
Also published as: CN101672068A

Abstract

The invention relates to a water draining method for a plain type landfill. The landfill is divided into a plurality of units by water-resisting dams; two main pipes which are a rain water pipe and a sewage pipe are arranged outside the landfill; and the sewage from a landfill unit is introduced into the sewage pipe, and the rain water from a non-landfill unit is introduced into the rain water pipe. In a specific implementation way, each unit is provided with a main unit pipe and a branch unit pipe, wherein the branch unit pipes are shock tubes provided with holes, can collect the rain water or sewage into the main unit pipes and discharge the rain water or sewage outside the units; and the main unit pipes are selectively communicated with the rain water pipe or the sewage pipe by valves. The method can reduce the sewage generation quantity in the large area landfill to the minimum, thus greatly relieving the pressure of sewage treatment and having good environmental and economic benefits.

Description

The water discharge method that is used for plain type landfill

Technical field

The present invention relates to the garbage loading embeading field, relate more specifically to the water discharge method of refuse landfill, relate more specifically to the water discharge method of plain type landfill.

Background technology

In existing garbage loading embeading operation, unit in charge of construction just hews out an open ground usually, then municipal refuse is deposited in here.Sometimes around landfill yard, embankment is set, is diffused into other zones to prevent the sewage that comes from landfill yard.Such refuse landfill is usually at least more than 10 hectares, have in addition reach tens hectares.At present, do not take special measure to deal with the large amount of sewage that produce rainy day for the drainage of refuse landfill.For a large-area landfill yard, if run into rainy weather, there is the rainwater of garbage areas to become sewage from piling, it is diffused into other zones (as yet not heap garbage) of landfill yard, perhaps mix with these other regional rainwater, feasible rainwater from whole landfill yard all becomes sewage, and this can increase the burden of sewerage treatment undoubtedly greatly.Moreover, in area with heavy rainfall, the bad weather that can occur raining heavily for a long time usually; in this case; the sewage disposal device of refuse landfill does not reach needed disposal ability far away, and can only cause the environment pollution in area, landfill yard downstream with effluent discharge to environment.

Summary of the invention

Therefore the present invention proposes a kind of water discharge method that is used for plain type landfill, to overcome the defective that exists in the prior art.

Method of the present invention is, landfill yard is divided into some unit with the water proof dike, and two persons in charge---rainwater pipe and soil pipe are set outside landfill yard, will direct into soil pipe from the sewage in landfill district, will import the rainwater pipe from the rainwater in non-landfill district.

In a kind of specific embodiment, the unit is set in each unit is responsible for and the unit arm, this unit arm is a floral tube with holes, each unit arm is collected to the unit person in charge with rainwater or sewage, drains into then outside each unit.Wherein, the unit is responsible for and selectively is communicated to rainwater pipe or soil pipe by valve.

In a kind of more concrete embodiment, between each unit person in charge and soil pipe, one first valve is set, between each unit person in charge and rainwater pipe, one second valve is set.In the rainy day, for the landfill unit that is filled with rubbish, open first valve, close second valve, make sewage be delivered to the sewerage treatment place by soil pipe; For the landfill unit of not filling out rubbish, close first valve, open second valve, make rainwater discharge by the rainwater pipe.

In the concrete embodiment of another kind, outside each unit, collecting well is set, the sewage or the rainwater of each unit drained in the collecting well.Again each collecting well is optionally imported soil pipe or rainwater pipe by first valve and second valve.The benefit of this mode is, by the transfer of collecting well, the solids in can precipitated outlet water or isolate suspension is unlikely to blocking pipe like this.In this case, also many floral tubes with holes can only be set in each unit, these floral tubes directly lead to collecting well separately.

In the concrete embodiment of another kind, for the unit of landfill waste (first module) at first collecting well only is set, and valve is not set, this collecting well can directly feed soil pipe.

In the method for the invention, normally mark off a plurality of unit along the length direction in whole soot.For length and the little large tracts of land landfill yard (for example length and width are all more than 100 meters) of width great disparity, can whole place be divided into some long and narrow zones along first direction, then each long and narrow zone is being divided into aforesaid some unit.

Method of the present invention is applicable to the draining of plain type and sloping field type refuse landfill.By method of the present invention, the sewage generation in the large tracts of land refuse landfill can be dropped to minimum level, thereby alleviate the pressure of sewerage treatment greatly, have very big environmental benefit and economic benefit.

Description of drawings

Fig. 1 is the schematic diagram that first embodiment is shown.

Fig. 2 is the schematic diagram that illustrates according to exemplary second embodiment of the present invention.

The specific embodiment

As shown in Figure 1, whole refuse landfill is divided into 5 unit, is separated by water proof dike 3 between the unit, and wherein, first module 1 has been filled up rubbish, second unit 2 just in use, third and fourth and Unit five use as yet.Unit floral tube 12 is set in each unit, and these floral tubes are directly connected in the collecting well 14 outside each unit.Except that first module, all the other each collecting wells optionally are communicated with soil pipe 17 and rainwater pipe 18 by first valve 15 and second valve 16 respectively.The collecting well 14 of first module then directly is communicated to soil pipe 17, and the sewage of soil pipe is discharged to the sewerage treatment place and carries out purified treatment.

Fig. 2 illustrates second embodiment.As shown in Figure 2, whole refuse landfill is divided into 5 unit, is separated wherein by water proof dike 3 between the unit, and first module 1 has been filled up rubbish, second unit 2 just in use, third and fourth and Unit five use as yet.The unit person in charge 10 and unit arm 11 are set in each unit, and this unit arm is a floral tube with holes, and each unit arm 11 is collected to the unit person in charge 10 with rainwater or sewage.Except that first module 1, the person in charge of all the other each unit all optionally is communicated to soil pipe 17 and rainwater pipe 18 by first valve 15 and second valve 16.

In not shown the 3rd embodiment who goes out, can adopt the pipeline connected mode among second embodiment, and the collecting well 14 shown in Fig. 1 is set for each unit.

More than just according to an exemplary embodiment of the present invention.Be understood that easily those skilled in the art can do multiple accommodation to the foregoing description, these are flexible even can obtain better effect.For example, can as yet not the unit of landfill waste the unit arm is not set, and before preparing landfill waste, lay.

Be understood that equally easily, can make various accommodation, as long as the rainwater that can will drop in this unit is collected into the outside, unit the arrangement mode of pipeline in each unit.

In actual mechanical process, as run into rainy day, operating personnel only need not use the pipeline in the unit to be communicated to rainwater pipe 18 by opening second valve 16 and closing first valve 15, and the pipeline that uses the unit is communicated to soil pipe 17 and gets final product by closing second valve 16 and opening first valve 15.

In order further to reduce the sewage generation, under the situation of place permission, can earlier the unit that piles with rubbish be covered, this can cover the closely knit soil of last layer and realize by the upper surface in this unit.

Above exemplary embodiments in conjunction with minority is described embodiments of the present invention, but these embodiments only are for exemplary purposes rather than limit the present invention.It should be understood that those skilled in the art can be under the prerequisite that does not deviate from scope and spirit of the present invention, change and revise for the specific embodiment.Similarly, except above-mentioned embodiment, can also find many specific embodiment in the appended claims.

Claims

1. the water discharge method of a plain type landfill, it is characterized in that, landfill yard is divided into some unit with water proof dike (3), a rainwater pipe (18) and a soil pipe (17) are set outside described landfill yard, to direct into soil pipe (17) from the sewage of landfill unit, will import rainwater pipe (18) from the rainwater of landfill unit not.

2. the water discharge method of plain type landfill according to claim 1, it is characterized in that, the unit is set in each unit is responsible for (10) and unit arm (11), described unit arm (11) is a floral tube with holes, rainwater or sewage are collected to the described unit person in charge (10), and, (10) are responsible for by valve (15 in each described unit, 16) selectively be communicated to described rainwater pipe (18) or soil pipe (17), so that will arrive described soil pipe (17) from the sewage transport of described landfill unit, will be transported to described rainwater pipe (18) from the rainwater of described not landfill unit.

3. the water discharge method of plain type landfill according to claim 2, it is characterized in that, between each described unit person in charge (10) and soil pipe (17), one first valve (15) is set, between each described unit person in charge (10) and rainwater pipe (18), one second valve (11) is set, in the rainy day, open described first valve (15) for described landfill unit and close described second valve (16), make sewage be delivered to the sewerage treatment place by described soil pipe; Close first valve for landfill unit not and open second valve, make rainwater pass through described rainwater pipe and discharge.

4. the water discharge method of plain type landfill according to claim 3, it is characterized in that, collecting well (14) is set outside each unit, the sewage or the rainwater of each unit are drained in the collecting well (14), again each collecting well (14) is optionally imported described soil pipe (17) or imports described rainwater pipe (18) by described second valve (16) by described first valve (15).