Summary of the invention
In one aspect, the utility model provides a kind of equipment for separating liquid from solid, comprise the sedimentation separation district, be arranged on the mixed liquor distributed area of sedimentation separation district below and be arranged on the concentrated mixing liquid zone of below, mixed liquor distributed area, wherein the top in sedimentation separation district is provided with the supernatant outlet, and the bottom in sedimentation separation district is limited by the upper surface of the first inverted V-shaped plate; The top in mixed liquor distributed area is limited by the lower surface of the first inverted V-shaped plate, the bottom in mixed liquor distributed area is limited by the upper surface of the second inverted V-shaped plate, also be provided with the mixed liquor distributor that allows mixed liquor to enter the mixed liquor distributed area in the mixed liquor distributed area, have the first passage that the permission fluid is communicated with sedimentation separation district and mixed liquor distributed area between the inwall of the first inverted V-shaped plate and equipment for separating liquid from solid; The top of concentrated mixing liquid zone is limited by the lower surface of the second inverted V-shaped plate, concentrate to mix the liquid zone and also be provided with concentrated mixture export, have between the inwall of the second inverted V-shaped plate and equipment for separating liquid from solid and allow fluid to be communicated with the second channel of mixed liquor distributed area and concentrated mixing liquid zone.
According to some embodiments of equipment for separating liquid from solid of the present utility model, wherein the spine of the spine of the first inverted V-shaped plate and the second inverted V-shaped plate is parallel to each other basically,
According to some embodiments of equipment for separating liquid from solid of the present utility model, wherein the mixed liquor distributed area has the inverted V-shaped cross section.
According to some embodiments of equipment for separating liquid from solid of the present utility model, wherein between the first inverted V-shaped plate and the second inverted V-shaped plate one or more support members can be set.
Some embodiments according to equipment for separating liquid from solid of the present utility model, wherein the first inverted V-shaped plate and the second inverted V-shaped plate have 15 °-165 ° independently of one another, and preferred 45 °-135 °, more preferably 60 °-120 °, more preferably 75 °-105 ° angle, for example about 90 ° angle.
Some embodiments according to equipment for separating liquid from solid of the present utility model, wherein first passage is first slit substantially parallel with the spine of the first inverted V-shaped plate, and second channel is second slit substantially parallel with the spine of the second inverted V-shaped plate, preferred first slit and second slit are parallel to each other basically, and more preferably first slit is wideer than second slit.
According to some embodiments of equipment for separating liquid from solid of the present utility model, wherein the mixed liquor distributor has essentially identical flow through being arranged so that the mixed liquor that enters the sedimentation separation district by first passage everywhere at first passage.
Some embodiments according to equipment for separating liquid from solid of the present utility model, wherein the mixed liquor distributor is one or more one or more water distributors that are positioned at the opening in mixed liquor distributed area that have, the spine of preferred cloth water pipe and the first inverted V-shaped plate and/or the spine of the second inverted V-shaped plate are parallel, and more preferably water distributor is as the spine of the first inverted V-shaped plate and/or the spine of the second inverted V-shaped plate.
According to some embodiments of equipment for separating liquid from solid of the present utility model, wherein between the mixed liquor distributor and the first inverted V-shaped plate and/or the second inverted V-shaped plate one or more support members can be set.
According to some embodiments of equipment for separating liquid from solid of the present utility model, wherein in described sedimentation separation district, also be provided with swash plate or inclined tube to strengthen solid-liquid separation efficiency.
Some embodiments according to equipment for separating liquid from solid of the present utility model, wherein be provided with gas distributor in the bottom of concentrate mixing the liquid zone and stir when allowing the gas come-up and concentrate the concentrated mixed liquor that mixes in the liquid zone, the preferred gas distributor and the second inverted V-shaped plate all accumulate in the below of the second inverted V-shaped plate basically and derive equipment for separating liquid from solid along the lower surface of the second inverted V-shaped plate after being arranged so that the gas come-up.In some cases, can not enter the mixed liquor distributed area or enter solid-liquid displacement zone through first passage again after the gas come-up guaranteeing in that the swash plate that inwall by equipment for separating liquid from solid extends to below the second inverted V-shaped plate can be set below the second channel through second channel.
On the other hand, the utility model provides a kind of sewage-treatment plant, comprise the Anaerobic Treatment section, the Aerobic Process for Treatment section and be arranged on the Anaerobic Treatment section and aerobic processing section between the equipment for separating liquid from solid according to above-mentioned any embodiment, wherein the Anaerobic Treatment section is provided with sewage feed pipe and Anaerobic Treatment mixture export, the mixed liquor that the Anaerobic Treatment mixture export is communicated with the concentrated mixing liquid zone fluid of equipment for separating liquid from solid with permission Anaerobic Treatment section enters the concentrated liquid zone that mixes, concentrating the outlet that mixes the liquid zone is communicated with Aerobic Process for Treatment section fluid to allow concentrated concentrated mixed liquor and the optional gas that mixes the liquid zone to enter the Aerobic Process for Treatment section, the bottom of Aerobic Process for Treatment section is provided with one or more aerators and the top is provided with the mixed liquor lifting device, the top of mixed liquor lifting device is provided with gas-liquid separation device and separates with the aeration mixed liquor with the aeration gas that allows to pass through the mixed liquor lifting device, gas-liquid separation device is provided with gas vent and aeration mixture export, the aeration mixture export is communicated with Anaerobic Treatment section and equipment for separating liquid from solid fluid respectively to allow first's aeration mixed liquor to enter the Anaerobic Treatment section and allow second portion aeration mixed liquor to enter equipment for separating liquid from solid, and preferred aeration mixture export is communicated with sewage feed pipe and mixed liquor distributor fluid respectively.
Some embodiments according to sewage-treatment plant of the present utility model, wherein be provided with the gas redistributor in the mixed liquor lifting device and further mix in the mixed liquor lifting device to allow aeration gas and aeration mixed liquor, the preferred gas redistributor is one or more aerators.When the minute bubbles that leave aerator are condensed into than air pocket in the aerobic reaction section gradually, described gas redistributor can disperse to become minute bubbles once more with these air pockets, thereby utilized the oxygen in the bubble more fully, improved the efficient of aerobic reactor.The gas redistributor of She Zhiing has not only improved the utilization rate and the aerobic reaction efficiency of oxygen-containing gas like this, has also played the effect of buffering energy dissipating.Because material kinetic energy by the gas redistributor time reduces and air pocket wherein has been dispersed into minute bubbles once more, leave that bubble can relax in the material of gas redistributor, the liquid level of overflowing reposefully, help the separate discharge of gas.In some cases, the gas of the liquid level of steadily overflowing can directly discharge, and need not to be provided with the buffering air chamber, thereby has saved investment, operation and maintenance expense.
According to some embodiments of sewage-treatment plant of the present utility model, wherein the bottom of the concentrated mixing liquid zone in the equipment for separating liquid from solid is provided with gas distributor, and the preferred gas distributor is one or more aerators.
According to some embodiments of sewage-treatment plant of the present utility model, wherein said equipment for separating liquid from solid is arranged between Anaerobic Treatment section and the aerobic processing section.
Some embodiments according to sewage-treatment plant of the present utility model, wherein said Anaerobic Treatment section, Separation of Solid and Liquid section and/or Aerobic Process for Treatment section are cylinder or square tube body, and preferred described Anaerobic Treatment section, Separation of Solid and Liquid section and aerobic processing section constitute cylinder or square tube body together.
Some embodiments according to sewage-treatment plant of the present utility model, wherein above-mentioned aerator is preferably any suitable aerator, for example spiral aerator, micro-hole aerator, board-like aerator, revolve mixed aerator, tube aerator, jetting type aerator etc.The preferred fixedly spiral aerator that uses, for example fixedly single-screw aerator, fixedly double helix aerator or fixing triple helical aerator etc.
According to some embodiments of sewage-treatment plant of the present utility model, wherein be provided with gas exhausting device to discharge the gas of output in the Anaerobic Treatment section at the top of Anaerobic Treatment section.
According to some embodiments of sewage-treatment plant of the present utility model, wherein near small part, preferred whole described sewage-treatment plants are imbedded underground, to save the area, to reduce noise and to avoid influence to view.Biological sewage treatment device of the present utility model has also that effluent quality is good, volumetric loading is high, save take up an area of, sludge yield is low, to advantages such as the surrounding enviroment influence are little.
The specific embodiment
Below in conjunction with accompanying drawing embodiments more of the present utility model are further introduced, but be not intended to limit protection domain of the present utility model.
Accompanying drawing 2 is the structural representations according to an embodiment of sewage-treatment plant of the present utility model, wherein said sewage-treatment plant comprises Anaerobic Treatment section (S1), Separation of Solid and Liquid section (S2) and aerobic processing section (S3), and Fig. 1 has provided the cross sectional representation of Separation of Solid and Liquid section (S2).
The sewage charging enters Anaerobic Treatment section (S1) with the first's aeration mixed liquor (9) from mixed liquor lifting device (11) by the sewage feed pipe as water inlet, mixed liquor after Anaerobic Treatment enters the concentrated mixing liquid zone (Z3) of Separation of Solid and Liquid section (S2) by Anaerobic Treatment mixture export (6), the Anaerobic Treatment mixed liquor mixes with concentrated mixed liquor from sedimentation separation district (Z1) in concentrate mixing liquid zone (Z3) and through the aeration processing as the aerator (5) of gas distributor, enter Aerobic Process for Treatment section (S3) by concentrating mixture export (7) then, concentrate the gas that mixes in the liquid zone (Z3) simultaneously and also enter Aerobic Process for Treatment section (S3), aeration mixed liquor after aeration is handled enters gas-liquid separation gas-liquid separation device (11) so that gas separates with the aeration mixed liquor by the mixed liquor lifting device (10) that is provided with the gas redistributor together with the gas in the aerobic processing section (S3), first's aeration mixed liquor (9) is with entering Anaerobic Treatment section (S1) then, second portion aeration mixed liquor (8) enters the mixed liquor distributor (1) of Separation of Solid and Liquid section (S2), and wherein first's aeration mixed liquor (9) can pass through flow control valve (12) control with the ratio of second portion aeration mixed liquor (8).
The mixed liquor that enters the mixed liquor distributor (1) that is made of one or more water distributors enters the mixed liquor distributed area (Z2) that is limited by the first inverted V-shaped plate (3) and the second inverted V-shaped plate (4) equably by one or more openings (2), enters sedimentation separation district (Z1) by the slit between the inwall of the first inverted V-shaped plate (3) and equipment for separating liquid from solid then.After separating in sedimentation separation district (1), supernatant is discharged by spilling water groove (13) as water outlet.The concentrated mixed liquor of bottom, sedimentation separation district (1) enters to concentrate by the slit between the inwall of the first inverted V-shaped plate (3) and the second inverted V-shaped plate (4) and equipment for separating liquid from solid and mixes liquid zone (Z3).Concentrate mixed liquor and mix the stirring that is subjected in the liquid zone (Z3) from the gas of aerator (5) concentrated, thereby mix and under the promotion of gas, enter Aerobic Process for Treatment section (S3) with mixed liquor from the Anaerobic Treatment section.
In sewage-treatment plant shown in Figure 2, the top of Anaerobic Treatment section (S1) also is provided with air bleeding valve (14) to discharge any gas that produces in Anaerobic Treatment section (S1).
In sewage-treatment plant shown in Figure 2, Anaerobic Treatment section (S1), Separation of Solid and Liquid section (S2) and aerobic processing section (S3) have identical diameter and constitute cylinder together.
In sewage-treatment plant shown in Figure 2, the gas that is used for the aeration processing all passes through mixed liquor lifting device (10) and gas-liquid separation device (11) discharge at last, and drive the circulation of mixed liquor in the entire sewage treating apparatus thus, therefore make full use of the energy of gas, reduced the energy consumption of entire sewage treating apparatus.
In some cases, the intake of first's aeration mixed liquor (9) can be in any position in the gas-liquid separation device (11), preferably equal or a little more than sedimentation separation district (Z1) in the position of horizontal plane of supernatant.
In addition, sewage-treatment plant shown in Figure 2 is horizontal layout, reduced whole height of devices, owing to adopted, make separation, mixing and the conveying of mixed liquor integrate compactly simultaneously, reduced occupation of land according to equipment for separating liquid from solid of the present utility model, simplify the structure, therefore made things convenient for maintenance, described sewage-treatment plant can be imbedded undergroundly, helps saving the area, keeps temperature and beautify the environment.
Below the mode of explanation has been described the utility model by way of example.But, should be appreciated that the utility model never only only limits to these specific embodiment.Those of ordinary skill can carry out various modifications or change to the utility model, and these modifications and change all belong to protection domain of the present utility model.