CN209923064U

CN209923064U - Wetland waste water recycling system

Info

Publication number: CN209923064U
Application number: CN201821941108.0U
Authority: CN
Inventors: 胡惠民; 陈彦辰
Original assignee: Linyi County Xindeli Textile Co Ltd
Current assignee: Linyi County Xindeli Textile Co Ltd
Priority date: 2018-11-23
Filing date: 2018-11-23
Publication date: 2020-01-10
Anticipated expiration: 2028-11-23

Abstract

The utility model particularly relates to a wetland waste water recycling system belongs to water treatment technical field, and the technical problem that solve provides a reduce blowdown, improve water resource utilization's wetland waste water recycling system, and the technical scheme of adoption is: a wetland wastewater recycling system comprises a filter tank, a lift pump, a sedimentation tank, PP cotton filtration, a pressure pump, a precision filter, a delivery pump, an automatic softening device and a workshop soft water tank; the components are connected in sequence through pipelines; a water taking tank is arranged between the filter tank and the wetland, the bottom surface of the water taking tank is obliquely arranged, a sludge pump is arranged on the bottom surface of the water taking tank, a sludge activation tank is arranged at the outlet of the sludge pump, and the sludge activation tank is communicated with the wetland; the utility model is used for the recycle of wetland waste water can reduce the emission of sewage, improves the utilization ratio of water resource to let wetland water become running water, improve wetland sewage treatment capacity.

Description

Wetland waste water recycling system

Technical Field

The utility model belongs to the technical field of water treatment, a wetland waste water recycling system of specific design.

Background

The formation of green production life style, the acceleration of the improvement of ecological environment, the reduction of total domestic production water consumption by 23 percent, and the construction of beautiful China with sky blue, earth green and clear water are important contents for the thirteen-five planning of the national economy and social development of the people's republic of China. Therefore, the recycling of the waste water is one of the ways of saving energy, reducing emission and improving ecological environment.

The traditional sewage treatment system has high investment cost and high operation cost; the constructed wetland has the advantages of low construction and operation cost, easy maintenance and low technical content, and the constructed wetland has strong capacity for treating nitrogen and phosphorus, and is a preferable mode for treating sewage under the requirement of a sustainable development road.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the defects in the prior art and provides a wetland waste water recycling system which can reduce pollution discharge and improve the utilization rate of water resources.

In order to solve the technical problem, the utility model discloses a technical scheme be: a wetland wastewater recycling system comprises a filter tank, a lift pump, a sedimentation tank, PP cotton filtration, a pressure pump, a precision filter, a delivery pump, an automatic softening device and a workshop soft water tank; the components are connected in sequence through pipelines;

the sewage treatment device is characterized in that a water taking tank is arranged between the filter tank and the wetland, the bottom surface of the water taking tank is inclined, a sludge pump is arranged on the bottom surface of the water taking tank, a sludge activation tank is arranged at the outlet of the sludge pump, and the sludge activation tank is communicated with the wetland.

And a water storage tank is arranged between the precision filter and the delivery pump.

The filter tank sets gradually first filter screen and second filter screen according to the rivers direction, first filter screen aperture is 1cm, second filter screen aperture is 2 mm.

The sedimentation tank is a horizontal flow type sedimentation tank, and a mud scraper is arranged in the horizontal flow type sedimentation tank.

The PP cotton filtering device is characterized in that primary PP cotton filtering and secondary PP cotton filtering are sequentially arranged according to the water flow direction, the filtering precision of the primary PP cotton filtering is 5 mu m, and the filtering precision of the secondary PP cotton filtering is 1 mu m.

The structure of the mud scraper comprises a driving device, a working bridge, a main mud scraper, an auxiliary mud scraper, a central turntable, a skimming device, an overflow weir plate, a slag baffle, a current collecting device and a guide cylinder.

The wetland sewage treatment steps of the utility model are as follows: the wetland flows to a water taking tank, the water enters a filtering tank after primary sludge sedimentation, large garbage (larger than 1 cm) is filtered by a first filter screen, and small garbage (larger than 2 mm) is filtered by a second filter screen; enabling wetland water to enter a sedimentation tank, settling silt and other settleable impurities, wherein the settling time is generally 2-6 h, enabling supernatant to enter PP cotton for filtration, and enabling the pore diameter of PP cotton filtration micropores to be in gradient distribution along the diameter direction, and filtering the impurities larger than 1 mu m; conveying the wet ground water to a precision filter through a pressure pump, and filtering impurities larger than 0.22 mu m; the wetland water enters a reservoir and is conveyed to an automatic softening device through a conveying pump according to the water use requirement, and the automatic softening device adopts ion exchange resin to remove scale ions such as calcium, magnesium and the like in the water; and (4) treating the wetland water to reach the water use standard of the workshop, and storing the treated wetland water in a soft water tank of the workshop for later use.

And the sludge in the water taking tank is conveyed to a sludge activation tank through a sludge pump, and the activated sludge is returned to the wetland for recycling.

And the step of sludge activation comprises the steps of injecting water into the sludge activation tank, adding a commercially available sludge activating agent after stopping water injection, then starting aeration, stopping aeration and settling for 1 hour after 2-3 days of aeration, injecting water, and then injecting the water into the wetland for recycling.

After the wetland wastewater recycling system is used for treating, the water quality reaches the standard of workshop water, and indexes of the wetland water after recycling treatment are as follows:

item	Hardness mmol/L	pH	Conductivity mS/cm	Cl^-
					Well water	5.8	7.8	1768	84
After being treated by the wetland water recycling system	8	8	3800	140
					Water index for workshop	≤9	7.8—8.5	≤3900	≤150

For hardness, pH, conductivity and Cl^-The standard workshop water can be adopted, the wetland wastewater recycling system can be adopted.

Compared with the prior art, the utility model following beneficial effect has.

One, the utility model relates to a water intaking pond, the mud in water intaking pond can be by wetland reuse after the activation, has improved the activation ability of wetland, and wetland water impurity after water intaking pond deposits reduces, reduces the sequent process to wetland water treatment pressure to improve the cleanliness factor of reuse water.

Secondly, the utility model discloses with wetland waste water recycle, reduced the emission of sewage, have huge promotion effect to environmental protection.

Thirdly, the utility model discloses utilize waste water softening water, improved the utilization ratio of water resource.

Fourthly, the utility model discloses handle recycle with wetland waste water, let wetland water become running water, improve wetland sewage treatment ability to improve sewage treatment effect.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1 is the filtering ponds, 2 is the elevator pump, 3 is the sedimentation tank, 4 is the cotton filtration of PP, 5 is the force (forcing) pump, 6 is precision filter, 7 is the delivery pump, 8 is automatic softening installation, 9 is the soft pond in workshop, 10 is the cistern, 11 is first filter screen, 12 is the second filter screen, 13 is for getting the pond, 14 is the sludge activation pond, 15 is the wetland.

Detailed Description

The following is a further description with reference to specific examples.

A wetland wastewater recycling system comprises a filter tank 1, a lift pump 2, a sedimentation tank 3, PP cotton filtration 4, a pressure pump 5, a precision filter 6, a delivery pump 7, an automatic softening device 8 and a workshop soft water tank 9; the components are connected in sequence through pipelines;

set up water fetching tank 13 between filtering ponds 1 and wetland 15, water fetching tank 13 bottom surface slope sets up, water fetching tank 13's bottom surface sets up the sludge pump, the exit of sludge pump sets up sludge activation pond 14, sludge activation pond 14 intercommunication wetland 15.

A water reservoir 10 is arranged between the precision filter 6 and the delivery pump 7.

Filter tank 1 sets gradually first filter screen 11 and second filter screen 12 according to the rivers direction, 11 apertures of first filter screen are 1cm, 12 apertures of second filter screen are 2 mm.

The sedimentation tank 3 is a horizontal flow type sedimentation tank, and a mud scraper is arranged in the horizontal flow type sedimentation tank.

The PP cotton filtering device 4 is characterized in that primary PP cotton filtering and secondary PP cotton filtering are sequentially arranged according to the water flow direction, the filtering precision of the primary PP cotton filtering is 5 micrometers, and the filtering precision of the secondary PP cotton filtering is 1 micrometer.

The wetland sewage treatment steps are as follows: the wetland flows to a water taking tank, the water enters a filtering tank after primary sludge sedimentation, large garbage (larger than 1 cm) is filtered by a first filter screen, and small garbage (larger than 2 mm) is filtered by a second filter screen; the wetland water enters a sedimentation tank to settle silt and other settleable impurities, the settling time is 4 hours, the supernatant enters PP cotton for filtration, the pore diameter of the PP cotton filtration micropores is in gradient distribution along the diameter direction, and impurities with the diameter larger than 1 mu m are filtered; conveying the wet ground water to a precision filter through a pressure pump, and filtering impurities larger than 0.22 mu m; the wetland water enters a reservoir and is conveyed to an automatic softening device through a conveying pump according to the water use requirement, and the automatic softening device adopts ion exchange resin to remove scale ions such as calcium, magnesium and the like in the water; and (4) treating the wetland water to reach the water use standard of the workshop, and storing the treated wetland water in a soft water tank of the workshop for later use.

And (3) conveying the sludge in the water taking tank to a sludge activation tank through a sludge pump, and activating the sludge and then returning the activated sludge to the wetland for recycling.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. It will be apparent to those skilled in the art that modifications and improvements can be made to the above-described embodiments without departing from the spirit and scope of the invention. Accordingly, it will be appreciated that those skilled in the art, upon attaining an understanding of the foregoing may readily produce alterations to, variations of, and equivalents to these embodiments without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A wetland wastewater recycling system is characterized by comprising a filter tank (1), a lifting pump (2), a sedimentation tank (3), PP cotton filtration (4), a pressure pump (5), a precision filter (6), a delivery pump (7), an automatic softening device (8) and a workshop soft water tank (9); the components are connected in sequence through pipelines;

a water taking tank (13) is arranged between the filter tank (1) and the wetland (15), the bottom surface of the water taking tank (13) is obliquely arranged, a sludge pump is arranged on the bottom surface of the water taking tank (13), a sludge activation tank (14) is arranged at the outlet of the sludge pump, and the sludge activation tank (14) is communicated with the wetland (15); a water storage tank (10) is arranged between the precision filter (6) and the delivery pump (7); the filter tank (1) is sequentially provided with a first filter screen (11) and a second filter screen (12) according to the water flow direction, the aperture of the first filter screen (11) is 1cm, and the aperture of the second filter screen (12) is 2 mm; the sedimentation tank (3) is a horizontal flow sedimentation tank, and a mud scraper is arranged in the horizontal flow sedimentation tank; the PP cotton filtering device is characterized in that the PP cotton filtering device (4) is sequentially provided with a first PP cotton filtering and a second PP cotton filtering according to the water flow direction, the filtering precision of the first PP cotton filtering is 5 micrometers, and the filtering precision of the second PP cotton filtering is 1 micrometer.