CN110759612A - Resource utilization method for silt in rainwater storage tank - Google Patents
Resource utilization method for silt in rainwater storage tank Download PDFInfo
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- CN110759612A CN110759612A CN201910967818.3A CN201910967818A CN110759612A CN 110759612 A CN110759612 A CN 110759612A CN 201910967818 A CN201910967818 A CN 201910967818A CN 110759612 A CN110759612 A CN 110759612A
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- sludge
- washing device
- sand washing
- rainwater
- flushing
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a resource utilization method of silt in a rainwater storage tank, which comprises the following steps: firstly, flushing sludge passing through a gate type hydraulic flushing system to a sludge collecting tank; then sucking the sludge in the sludge collecting groove into a sand washing device through a sludge pump; then the settled sand washed by the sand washing device is transported outside, and simultaneously the sewage is pumped back into the sludge collection tank. The water of the sand washing device comes from supernatant liquid of a regulating and storing pool for storing rainwater, the supernatant liquid of the regulating and storing pool is stored in a flushing pool at ordinary times, and is pressurized by a submersible sewage pump when in use, filtered by a tubular filter and pumped into the sand washing device. By adopting the design of the invention, the treatment problem of the existing sludge is solved, the rainwater scheme is adopted, the treatment effect is ensured, the cost is lower, and the separated substances in the treatment process can be fully utilized, so that the sludge treatment work has sustainability and economy.
Description
Technical Field
The invention relates to a sludge treatment method, in particular to a resource utilization method of silt in a rainwater storage tank.
Background
At present, sludge generated by urban maintenance drainage pipelines is mainly fished to a sludge transport vehicle and a sludge trailer through sludge fishing machinery or manual work, then transported to a sludge transfer site (including a sludge dock and a transfer site), temporarily stored, transported to the outskirts through ships, and transported to old port refuse landfill sites or earth-taking pits of brick factories through secondary transportation. Because the content of inorganic gravel in the sludge for dredging channels is high, the water content of the sludge is high, and the refuse landfill refuses to receive the sludge for dredging channels under most conditions.
And a small amount of sludge is directly consigned to an environmental sanitation vehicle for outward transportation and disposal, and the other part of sludge is mixed with muck for outward transportation and disposal. In the whole outward transportation treatment process, the problems of leakage and supervision loss exist, and secondary pollution is easily caused. Meanwhile, the environmental sanitation work difficulty is increased, and the urban environment and the appearance are influenced.
Therefore, it is necessary to design a sludge treatment method to achieve the purpose of sludge treatment and reuse.
Disclosure of Invention
The invention aims to provide a resource utilization method of silt in a rainwater storage tank, which is used for solving the problem that pollutants entering an overflow weir are lack of recovery in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a resource utilization method for silt in a rainwater storage tank comprises the following steps:
step 1: flushing the sludge passing through the gate type hydraulic flushing system to a sludge collecting tank;
step 2: sucking the sludge in the sludge collecting tank into a sand washing device through a sludge pump;
step 3: and transporting the settled sand washed by the sand washing device out, and simultaneously pumping the sewage back into a sludge collection tank.
Preferably, the water of the sand washing device comes from supernatant liquid of a regulating storage tank for storing rainwater, the supernatant liquid of the regulating storage tank is stored in a flushing water tank at ordinary times, and is pressurized by a submersible sewage pump when in use, filtered by a tubular filter and pumped into the sand washing device.
The invention has the following advantages:
by adopting the design of the invention, the treatment problem of the existing sludge is solved, the rainwater scheme is adopted, the treatment effect is ensured, the cost is lower, and the separated substances in the treatment process can be fully utilized, so that the sludge treatment work has sustainability and economy.
Drawings
Fig. 1 is a system operation diagram of a rainwater storage tank sediment resource utilization method.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial changes in the technical contents.
Example 1
Referring to fig. 1, a method for resource utilization of silt in a rainwater storage tank comprises the following steps:
step 1: flushing the sludge passing through the gate type hydraulic flushing system to a sludge collecting tank;
step 2: sucking the sludge in the sludge collecting tank into a sand washing device through a sludge pump;
step 3: and transporting the settled sand washed by the sand washing device out, and simultaneously pumping the sewage back into a sludge collection tank.
Preferably, the water of the sand washing device comes from supernatant liquid of a regulating storage tank for storing rainwater, the supernatant liquid of the regulating storage tank is stored in a flushing water tank at ordinary times, and is pressurized by a submersible sewage pump when in use, filtered by a tubular filter and pumped into the sand washing device.
By adopting the design of the invention, the treatment problem of the existing sludge is solved, the rainwater scheme is adopted, the treatment effect is ensured, the cost is lower, and the separated substances in the treatment process can be fully utilized, so that the sludge treatment work has sustainability and economy.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (2)
1. A resource utilization method for silt in a rainwater storage tank is characterized by comprising the following steps: the method comprises the following steps:
step 1: flushing the sludge passing through the gate type hydraulic flushing system to a sludge collecting tank;
step 2: sucking the sludge in the sludge collecting tank into a sand washing device through a sludge pump;
step 3: and transporting the settled sand washed by the sand washing device out, and simultaneously pumping the sewage back into a sludge collection tank.
2. The method for recycling silt in the rainwater storage tank as claimed in claim 1, wherein the method comprises the following steps: the water of the sand washing device comes from supernatant liquid of a regulating and storing pool for storing rainwater, the supernatant liquid of the regulating and storing pool is stored in a flushing pool at ordinary times, and is pressurized by a submersible sewage pump when in use, filtered by a tubular filter and pumped into the sand washing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910967818.3A CN110759612A (en) | 2019-10-12 | 2019-10-12 | Resource utilization method for silt in rainwater storage tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910967818.3A CN110759612A (en) | 2019-10-12 | 2019-10-12 | Resource utilization method for silt in rainwater storage tank |
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| CN110759612A true CN110759612A (en) | 2020-02-07 |
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| CN201910967818.3A Pending CN110759612A (en) | 2019-10-12 | 2019-10-12 | Resource utilization method for silt in rainwater storage tank |
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