CN2448822Y - Composite sewage treatment equipment - Google Patents

Abstract

The utility model relates to a composite sewage treatment device which belongs to the field of a sewage treatment device, and is formed by that the inner part of a casing is divided in turn into a sludge digestion tank, a regulating tank, a clean water tank and a pure water treating tank, wherein sewage enters the sludge digestion tank, flows out from a side filtering plate on the other end, enters the regulating tank which is provided with a liquid level sensor and a sewage pump, and then is pumped into the pure water treating tank which is provided with a water purifying block. A water overflow dam is arranged between the pure water treating tank and the clean water tank, and the recycle water with biological treatment flows into the clean water tank through the water overflow dam and is pumped out to pre-use. The utility model combines the functions of sedimentation, filtration, aeration and biological film treatment into the integration, has the advantages of compact structure, reasonable design and high degree of automation, and can be widely used for various sewage treatments in small towns, rural areas and villages.

Description

Composite sewage treatment device

As we all know, water is the source of life. The protection of water sources and the control of sewage discharge, no matter in cities or in rural areas, should be firmly grasped. However, so far, many small towns, suburban settlements and vast rural areas, the domestic sewage generated every day, especially the flushing sewage from pig and chicken farms, has not been included in the sewage treatment system, nor has a sewage treatment plant been established. Sewage is basically in a state of laissez-faire. When the sewage enters the river, it causes water pollution. However, for irrigation of farmland, orchards, watering of flowers and trees, cleaning of vehicles and cooling water for small businesses, tap water or clean water from rivers are used.

At present, there are various types of devices for sewage treatment, some of which use aerobic and anaerobic biological devices; some use chemical purification devices; some use mechanical filtration devices, etc. Although the treatment effect of the above-mentioned devices is all good, the investment for the treatment of scattered polluted water sources in small towns, suburban settlements and vast rural areas is too large and uneconomical. The utility model patent "Sedimentation, filtration and aeration three-in-one water processor" (ZL99 2 26559.2) owned by the inventor first adopts side filtration technology, that is, the direction of water flow during the filtration process is designed to form a certain angle with gravity, and the water flow from The purpose of side filtration is: solid matter is not easy to accumulate on the filter material, so that it will not affect the continuation of filtration. At the same time, the filtered water leaves the filter material in the form of water droplets or water film, so that the water flow and air have a good relationship. Full contact is achieved, resulting in an aeration effect. The utility model has particularly good effect of removing suspended solids, and has many specifications and low cost, but the removal rate of dissolved pollutants is low. The inventor also owns another utility model patent "a new biological water filter device" (ZL992 26703.X), which is a push-flow biological filter designed according to the characteristics of ecological concrete (permeable concrete). The chemical, physical, physical chemical and gradually formed biochemical effects on the ecological concrete remove and degrade pollutants to achieve the purpose of sewage purification. Apparently, the utility model has a particularly good effect of removing and degrading dissolved pollutants, and is easy to install and maintain.

The purpose of this utility model is to design a sewage treatment device which has good characteristics of removing suspended solids and has the ability to remove dissolved pollutants, has a simple structure, and is easy to operate and maintain.

In order to achieve the above object, the utility model is achieved through the following schemes. The composite sewage treatment device includes a sludge tank, a side filter plate, a liquid level sensor, a regulating tank, a sewage pump, a clean water tank, a clean water pump, an overflow dam, a water purification block, a water purification treatment tank, a ventilation compartment, and a ventilation mud discharge port , Sewage nozzles, clean water outlet pipes, flushing pipes, cover plates, inlet pipes, shells, fenders. The top of the housing can be provided with a cover plate, or it can be opened. There are 4-8 windows for mud discharge or ventilation on the cover plate. The interior of the shell is divided into four parts in turn: the mud tank, the regulating tank, the clear water tank and the purification tank. One end of the mud tank is provided with a sewage inlet pipe, the upper part of the partition between the other end and the regulating tank is provided with a side filter plate, and a mud guard with a channel in the middle is also provided in the mud tank. There is a liquid level sensor in the regulating tank next to the sludge tank, and a sewage pump is installed at the bottom of the regulating tank. The outlet pipe of the sewage pump is respectively equipped with a sewage nozzle for pumping sewage into the purification tank and a flushing pipe for flushing the filter screen of the side filter plate. A clean water pump is provided in the clean water pool next to the regulating tank, and the clean water pump is connected with the clean water outlet pipe to discharge the treated clean water for reuse. An overflow dam is provided between the clear water pool and the water purification treatment pool, and a ventilating interlayer is arranged on their upper parts, and a water purification block is arranged in the water purification treatment pool.

The utility model has the advantages of compact structure, reasonable design and high degree of automation. The utility model combines sedimentation, filtration, aeration, and biofilm treatment in one device, and the arrangement design of the front and rear sequences and the design of the ventilation compartment meet the process requirements, especially the liquid level sensor in the adjustment tank can be used according to the liquid level sensor. The high and low positions automatically control the start and stop of the sewage pump, and the linkage between the sewage pump and the clean water pump in the clean water tank makes the operation simple and convenient.

Accompanying drawing is an embodiment of the utility model

Fig. 1 is the structural representation of the utility model

Fig. 2 is the three-dimensional schematic view of the utility model

The utility model is further described in conjunction with the accompanying drawings

The composite sewage treatment device includes a sludge tank 1, a side filter plate 2, a liquid level sensor 3, a regulating tank 4, a sewage pump 5, a clean water tank 6, a clean water pump 7, an overflow dam 8, a water purification block 9, and a water purification treatment tank 10. Ventilation compartment 11, window 12, sewage nozzle 13, clean water outlet pipe 14, flushing pipe 15, cover plate 16, water inlet pipe 17, fender 18, housing 19. The housing 19 can be made of steel plate, glass fiber reinforced plastic, engineering plastics, or can be made of concrete pouring or masonry. The top of the housing 19 may be provided with a cover plate 16, or may be opened. The cover plate 16 is provided with 4-8 windows 12 for mud discharge or ventilation. The interior of the housing 18 is sequentially divided into four parts: a sludge treatment tank 1 , a regulating tank 4 , a clear water tank 6 and a water purification treatment tank 10 . One end of the mud tank 1 is provided with a sewage inlet pipe 17, and the upper part of the partition between the other end and the regulating tank 4 is provided with an inclined side filter plate 2, and the mud tank 1 is also provided with a fender 18 with a channel in the middle . After the sewage passes through the mud tank 1, heavy objects such as sludge and light objects such as straws are settled and blocked from the middle channel of the fender 18, and then filtered by the side filter plate 2, aerated, and then flowed to the next door of the mud tank 1 for adjustment In the pool 4, the liquid level sensor 3 provided in the regulating pool 4 is connected with the sewage pump 5 provided at the bottom of the regulating pool 4, and the start or stop of the sewage pump 5 is automatically controlled according to the high or low liquid level. The outlet pipe of the sewage pump 5 is connected with the sewage nozzle 13 that can pump sewage into the clean water treatment tank 10 and the flushing pipe 15 that can be used to wash the filter screen of the side filter plate 2 respectively, and the sewage is pumped into the clean water treatment tank 10 or this After the device runs for a while, when the filter screen mesh of side filter plate 2 is blocked by dirt, the filter screen of side filter plate 2 is rinsed by opening this flushing pipe 15. A clear water pump 7 is provided in the clear water pool 6 next to the regulating pool 4, and the clear water pump 7 is connected with the clear water outlet pipe 14 to discharge the treated clear water for reuse. An overflow dam 8 is provided between the clear water pool 6 and the water treatment pool 10, and their tops are provided with a ventilating interlayer 11, and a water purification block 9 is provided in the water purification pool 10, and the water purification block 9 can be an ecology made on the spot. Concrete (permeable concrete) panels or prefabricated ecological concrete blocks of various shapes.

The working principle of the utility model is as follows:

Sewage enters the desilting tank 1 of the present utility model from the water inlet pipe 17. After preliminary precipitation, it enters the side filter plate 2 through the opening of the fender 18. The inclined stainless steel filter screen installed on the side filter plate 2, the filter screen The mesh size is generally 50-400 mesh. After the sewage passes through the filter screen, most of the suspended solids are removed, and then enters the regulating tank 4 . The opening or closing of the sewage pump 5 at the bottom of the regulating tank 4 is automatically controlled by the liquid level sensor 3 according to the liquid level. Open the sewage pump 5, the sewage is sprayed into the ventilating interlayer 11 by the sewage nozzle 13, reaches the far end of the water purification treatment pool 10, passes through the ecological concrete wall formed by the water purification block 9 (the ecological concrete wall is prefabricated with the water purification block 9 or on-site made), through chemical physics, physical chemistry and other sewage purification effects, under the biological action of the biofilm grown on the ecological concrete wall, the pollutants are removed and degraded, and the overflow dam 8 at the near end of the water purification treatment pool 10 overflow and enter the clear water pool 6. At this time, the sewage has been purified and becomes "reuse water". The clear water pump 7 at the bottom of the clear water pool 6 can be automatically controlled according to the liquid level of the clear water or manually opened on demand to use the "returned water" or to discharge the "returned water" to the water tower for use. In addition, after the utility model has been running for a period of time, the dirt may block the filter screen on the side filter plate 2, the outlet switch of the sewage pump 5 can be opened, and the flushing pipe 15 installed on the sewage pump 5 outlet is aligned with the filter screen. The mesh is flushed to achieve the purpose of backwashing, so that the device can continue to work normally. When the sludge at the bottom of the sludge tank 1 accumulates to a certain height, open the cover plate 16 or the ventilation mud outlet 12 provided on the cover plate 16 to dig out or pump out the sludge. When the reclaimed water processed in the clear water pool 6 is not used temporarily, it can be discharged into river courses or ditches by the overflow outlet 20 offered on the clear water pool 6 walls.

Claims (3)

1. The composite sewage treatment device is characterized in that it is composed of a mud tank 1, a side filter plate 2, a liquid level sensor 3, a regulating tank 4, a sewage pump 5, a clean water tank 6, a clean water pump 7, an overflow dam 8, a clean water Block 9, water purification treatment tank 10, ventilation interlayer 11, ventilation mud outlet 12, sewage nozzle 13, water purification outlet pipe 14, flushing pipe 15, cover plate 16, water inlet pipe 17, fender 18, housing 19 Composition; the top of the shell 19 is provided with a cover plate 16, and the cover plate 16 is provided with 4-8 ventilation mud discharge outlets 12 for mud discharge or ventilation; the inside of the shell 19 is sequentially divided into a mud tank 1, a regulating tank 4, The clear water pool 6 and the water purification treatment pool 10 are divided into four parts; one end of the sludge tank 1 is provided with a sewage inlet pipe 17, and the upper part of the partition between the other end and the regulating tank 4 is provided with an inclined side filter plate 2; the sludge tank 1 There is also a fender 18 with a channel in the middle; a liquid level sensor 3 is provided in the regulating tank 4 next to the sludge tank 1, and a sewage pump 5 is also provided at the bottom of the regulating pool 4; the outlet pipe of the sewage pump 5 is connected to the sewage respectively. The nozzle 13 is connected with the flushing pipe 15; the clear water pump 7 is arranged in the clean water pool 6 next to the regulating pool 4, and the clean water pump 7 is connected with the clean water outlet pipe 14; an overflow dam is arranged between the clean water pool 6 and the clean water treatment pool 10 8. Ventilation interlayers 11 are provided on their tops, and water purification blocks 9 are provided in the water purification treatment pool 10 . 2. The composite sewage treatment device according to claim 1, characterized in that: said shell 19 can be made of steel plate, glass fiber reinforced plastic, engineering plastics, or can be made of concrete or masonry. 3. The composite sewage treatment device according to claim 1, characterized in that: said water purification block 9 can be an ecological concrete slab made on site, or an ecological concrete block prefabricated in various shapes.

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