CN207418526U - A kind of sewage disposal system - Google Patents

Abstract

A kind of sewage disposal system belongs to high density aquaculture technical field.The utility model sewage disposal system, for purifying aquaculture pond sewage, including being arranged on the sump of aquaculture pond rear class and arranged on the sewage water filtration pond of the sump rear class；The water of the aquaculture pond imports the sump from aquaculture pond upper strata and bottom respectively.The utility model is simple in structure, levels is divided to carry out sewage water discharge, filtering, purified treatment the sewage of aquaculture pond, solve the problems, such as aquaculture pond bottom fish faeces, food-residue accumulation it is excessive and caused by the harmful substances such as nitrous acid, ammonia nitrogen it is higher.

Description

A sewage treatment system

technical field

The utility model relates to the technical field of high-density aquatic product cultivation, in particular to a sewage treatment system.

Background technique

The sewage discharge of aquaculture ponds is of vital significance to environmental protection. The way of manual sewage discharge is low and the sewage discharge effect is not ideal. In aquatic product farming, excessive accumulation of fish feces and feed residues at the bottom of high-density freshwater fish ponds leads to high levels of harmful substances such as nitrous acid and ammonia nitrogen. And part of the breeding waste is floating on the water surface of the breeding pond. The existing sewage discharge is simple, most of them treat the sewage on the surface of the culture pond, but fail to effectively treat the sewage at the bottom of the culture pond. Although the water at the bottom of the culture pond is introduced into the ammonia nitrogen treatment pond and processed by the ammonia nitrogen processor, this method is relatively cumbersome and inconvenient, and it is also not conducive to the flow of water in the culture pond and the formation of a recyclable culture pond.

For this reason, there is an urgent need for a sewage treatment system that can take into account the sewage discharge and filtration of the upper and lower layers, and then purify the water source.

Utility model content

Aiming at the problems existing in the prior art, the utility model proposes a sewage treatment system with simple structure, effective sewage discharge, filtration and purification for breeding ponds containing floating and deposited sewage.

The utility model is achieved through the following technical solutions:

A kind of sewage treatment system, is used for purifying the sewage of aquaculture pond, comprises the sewage collection pond that is arranged at the rear stage of aquaculture pond, and is arranged at the sewage filter pond of described sewage collection pond rear stage; The layer and the bottom are introduced into the sump.

Preferably, the sewage treatment system further includes an ecological purification tank connected to the rear stage of the sewage filter tank.

Preferably, a shelf for stepping on is provided above the water surface of the sewage collection pool.

As a preference, a pumping pool enclosure is provided at the low end of the sewage collection pool.

As a preference, a first filter layer paved with quartz sand and a second filter layer paved with bluestone are sequentially arranged in the sewage filter tank from top to bottom; between the first filter layer and the second filter layer Filter.

As a preference, the sewage treatment system also includes an ecological purification tank connected to the rear stage of the sewage filter; the sewage filter is provided on the edge side of the second filter layer near the bottom to guide the filtered water to the ecological purification tank outlet hole.

Preferably, a branch pipeline is provided on the surface of the sewage filter tank to guide the overflowed water from the surface to the ecological purification tank.

Preferably, the sewage treatment system further includes ultraviolet sterilizing equipment arranged at the inlet connecting pipe of the sewage filter tank.

Preferably, both sides of the drain pipe have spaced drain holes, and the drain holes on one side are blocked.

The utility model has the following beneficial effects:

The utility model is a sewage treatment system, which has a simple structure. The sewage in the breeding pond is divided into upper and lower layers for sewage discharge, filtration and purification treatment, which solves the problem of nitrous acid and ammonia nitrogen caused by excessive accumulation of fish feces and feed residues at the bottom of the breeding pond. and other high levels of harmful substances.

Description of drawings

Fig. 1 is the system block diagram of a kind of sewage treatment system of the present utility model;

Fig. 2 is a structural schematic diagram of a sewage filter tank in a sewage treatment system of the present invention.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solutions of the utility model are further described, but the utility model is not limited to these embodiments.

As shown in Fig. 1-2, the utility model is a sewage treatment system, which includes a sewage collection tank arranged at the rear stage of the breeding pond, and a sewage filter pond arranged at the rear stage of the sewage collection pond. The utility model guides the sewage floating with dirt and the sewage with deposited dirt into the sewage filter tank through the upper layer of the culture pool and the bottom of the culture pool through the water of the culture pool, and divides the sewage of the culture pool into the upper and lower layers for sewage discharge, and then filters .

Specifically, a guide groove is provided at the rear end of the culture pond to guide the water with fish feces, impurities and dead fish floating in the culture pond into the sewage collection pond which is lower than the horizontal line of the culture pond. In order to facilitate manual trampling, scooping up miscellaneous items, and removing dead fish and bulky impurities, a shelf is provided on the water surface of the sewage collection pool. The sewage collection pool is located at the low end, and a pumping pool enclosure is set around it, and water is pumped to the sewage filter pool through the water pump in the enclosure.

The bottom of the breeding pond is communicated with the sewage collection tank through the drainage pipe. The drainage pipe at the bottom of the breeding pond adopts a PVC pipe, and some drainage holes are arranged at intervals on both sides of the drainage pipe, and the drainage holes on one side of the drainage pipe are blocked. Utilize the drop difference at both ends of the isolation dam to realize non-fuel power drainage, inject it into the sewage collection tank, and the control switch is flexible and convenient. And the sewage in the sewage collection tank can also be pumped into the sewage filter tank by being located at the water suction pipe at the bottom of the pool.

The sewage entering from the sewage collection tank is subjected to multi-layer filtration through the sewage filter tank. In the filter tank, a first filter layer made of quartz sand and a second filter layer made of bluestone are successively arranged in the filter tank; between the first filter layer and the second filter layer, Filter. Sewage is filtered through the first filter layer to filter medium and large residues, and the filter screen prevents the quartz sand from leaking into the bluestone. The second filter layer performs the second layer of residue filtration while raising the first filter layer. When considering the large water flow, a branch pipeline is also provided on the surface of the sewage filter tank to guide the overflowed water from the surface to the ecological purification tank.

The sewage treatment system of the utility model also includes an ecological purification pool for purifying the sewage filtered from the sewage filtration pool. The sewage filter tank is provided with a water outlet hole on the edge side near the bottom of the second filter layer to divert the filtered water to the ecological purification tank. The water outlet hole is a water outlet hole formed by inserting a hollow tubular piece on the edge side of the second filter layer close to the bottom. When building a sewage filter tank, when the edge surface is built with bluestones, a hollow tubular piece, such as moso bamboo, is inserted between the bluestones at about 10-30 cm. -5 cm water outlet hole to facilitate water filtration and outflow. The ecological purification pool purifies the sewage through microbial ecology, effectively cleaning the aquaculture water body.

In order to further purify the water body, the sewage treatment system of the utility model also includes ultraviolet sterilizing equipment arranged at the inlet connecting pipe of the sewage filter pool. The ultraviolet sterilizing equipment sterilizes the water body of the pipeline that passes through the drain pipe at the bottom of the breeding pond and enters the sewage filter pond through the sewage collection pond.

Those skilled in the art should understand that the above description and the embodiments of the present invention shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of this utility model has been fully and effectively realized. The functions and structural principles of the present utility model have been shown and explained in the embodiments, and the implementation of the present utility model can have any deformation or modification without departing from the principle.

Claims (9)

1. A sewage treatment system is used to purify the sewage in a culture pond, and it is characterized in that it comprises a sewage collection pond located at the rear stage of the cultivation pond and a sewage filter pond located at the rear stage of the sewage collection pond; the cultivation pond The water is imported into the sewage collection tank from the upper layer and the bottom of the culture pond respectively. 2. The sewage treatment system according to claim 1, further comprising an ecological purification pool connected to the rear stage of the sewage filter pool. 3. A sewage treatment system according to claim 1, characterized in that a shelf for stepping on is provided above the water surface of the sewage collection tank. 4. A sewage treatment system according to claim 1, characterized in that, a pumping pool enclosure is provided at the lower end of the sewage collection pool. 5. A kind of sewage treatment system according to claim 1, it is characterized in that, the first filter layer that quartz sand paves, the second filter layer that bluestone paves are arranged successively from top to bottom in described sewage filter tank; A filter net is arranged between the first filter layer and the second filter layer. 6. A kind of sewage treatment system according to claim 5, is characterized in that, also comprises the ecological purification pool that is connected in the rear stage of described sewage filter tank; Said sewage filter tank is in described second filtering layer, near the bottom On the edge side, there is a water outlet hole that guides the filtered water to the ecological purification pool. 7. A sewage treatment system according to claim 2, characterized in that a branch pipeline is provided on the surface of the sewage filter tank to guide the overflowed water from the surface to the ecological purification tank. 8 . The sewage treatment system according to claim 1 , further comprising ultraviolet sterilizing equipment arranged at the inlet connecting pipe of the sewage filter tank. 9 . 9. A sewage treatment system according to claim 1, wherein the bottom of the culture pond is connected to the sewage collection tank through a drain pipe; both sides of the drain pipe have interval drainage holes, and one of them The side drain holes are blocked.