CN1179897C

CN1179897C - Method and device for biological treatment and regenerative utilization of urban night soil and domestic waste water

Info

Publication number: CN1179897C
Application number: CNB031134580A
Authority: CN
Inventors: 周大成
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-05-15
Filing date: 2003-05-15
Publication date: 2004-12-15
Anticipated expiration: 2023-05-15
Also published as: CN1448350A

Abstract

The present invention relates to a method and a device for the biological treatment and the regeneration utilization of urban feces and domestic sewage. The method comprises the steps that a digestion reactor for urban feces and domestic sewage is buried underground; the inner part of an anaerobic tank of the digestion reactor is divided into a few cells, certain liquid level difference exists among the cells, and urban feces and domestic sewage are added to the first cell of the reactor; the ground level above the reactor is externally covered by a solar energy glass house in which an aquatic plant absorption purifying tank is arranged, and aquatic plants are planted in the purifying tank; methane liquid in the digestion reactor is poured into the absorption purifying tank of the aquatic plants so that the aquatic plants can be planted, and the aquatic plants growing in the purifying tank are added to the digestion reactor so that the aquatic plants are used as cobalt blue pigment for replenishing methane raw materials; sludge at the bottom of the anaerobic tank of the digestion reactor is added to the digestion reactor, and methane in the digestion reactor is sucked out so that users can use the methane. The present invention produces clean energy while the comprehensive utilization of urban feces and domestic sewage is realized.

Description

The biological treatment regeneration method and the device of urban night soil, sanitary wastewater

Technical field:

The present invention relates to the biological treatment regeneration method and the device of a kind of urban night soil, sanitary wastewater.

Background technology:

Urban night soil, sanitary wastewater (comprising phosphorus-containing detergent, catering trade waste and waste water) are increasing, pollute rivers and lakes, though building, present every building all has septic tank, but because all scattered distribution of septic tank, simple and easy, its capacity is little, and it is limited to handle load, though moreover the miniaturization manure pit can degrade to some extent to organic sewage, but wherein nitrogen, phosphorus, potassium and other organic components flow into river and lake with water drain, cause the water system eutrophication.Perhaps flow into the sewage works that the city focuses on, cause the sewage disposal load to increase the weight of, and a large amount of ammonia and nitrogen components in the treated water are difficult to remove, also increased the working cost of sewage disposal simultaneously significantly.Septic tank scatters and disappears in atmosphere in vain through another product biogas of degraded, causes secondary pollution.Therefore, processing in time also no longer produces secondary pollution in treating processes, has become the important indicator of environment protection in the urban construction, protection natural waterway, the sustainable renewable resource of protection.

Summary of the invention:

The objective of the invention is to overcome above-mentioned deficiency, provide a kind of and when producing clean energy, reach a kind of urban night soil of the comprehensive utilization of urban night soil, sanitary wastewater, the biological treatment regeneration method and the device of sanitary wastewater.

The objective of the invention is to realize: the biological treatment regeneration method of a kind of urban night soil, sanitary wastewater by following proposal, it comprises: at a underground urban night soil, the sanitary wastewater digestion reactor buried underground, be separated into several lattice in the reactor, each compartment has certain liquid level poor, and urban night soil, sanitary wastewater are added in the first lattice of this reactor; Enclosing cover is put a solar energy glass room on the Horizon outside reactor; One waterplant absorption cleaning pond is set in the solar energy glass room, the aquatic property plant of plantation in this treating pond, natural pond liquid in the digestion reactor is poured in the waterplant absorption cleaning pond, planting aquatic property plant, the aquatic property plant that grows in the treating pond added again make cobalt blue pigment in the digestion reactor to replenish the biogas raw material; The anaerobic pond pool bottom sludge of digestion reactor is added in the digestion reactor, the biogas in the digestion reactor is extracted out used for the user.

The present invention also can add flyash and tensio-active agent in digestion reactor.

The present invention also can be provided with the potential energy agitator on the pool wall of reactor anaerobic pond, utilize the liquid level drop of reactor anaerobic pond to cause washing away of liquid level energy to smash the natural pond skull that reactor anaerobic pond liquid level is formed, and utilize liquid level the impeller rotation to smash the natural pond skull that device is smashed the anaerobic pond liquid level.

The present invention also can be provided with biology and dwell and give birth to band in the anaerobic pond of digestion reactor.

The present invention can extract the natural pond liquid in the digestion reactor concentrated the purification and make the fertilizer concentrated solution; Make organic fertilizer particles or/and the mud in the digestion reactor extracted with the back granulation that is mixed of other raw material.

The biological treatment regeneration device of urban night soil of the present invention, sanitary wastewater, it comprises digestion reactor, charging and discharging mouth, waterplant absorption cleaning pond, glass room and connects pump, pipeline and valve, the charging and discharging mouth is arranged at the both sides of digestion reactor, its lower end communicates with digestion reactor, waterplant absorption cleaning Chi Gai places the digestion reactor top, plant in the waterplant absorption cleaning pond and be implanted with waterplant, natural pond liquid in the digestion reactor pours in the aquatic plant purification pond, and the glass room cover places outside the aquatic plant purification pond.

The present invention has following advantage:

1, the present invention utilizes urban night soil, sanitary wastewater, has obtained clean energy " biogas " under the effect of light, biology, has handled urban night soil, sanitary wastewater when producing clean energy, and the clean energy that is produced can stably digest nearby.When obtaining clean energy, can produce high-quality fertilizer, for the agriculture production of Organic food, positive pushing effect has been played in the development of pollution-less agriculture.

2, at anaerobically fermenting time ight soil as raw material, its gas production rate is lower, must in the liquid of natural pond, add the robust fibre cobalt blue pigment, to promote the sticking power of acidifying and Mierocrystalline cellulose and microorganism, promote the agglomerating performance of particle of mud, therefore the present invention establishes aquatic property plant absorbing treating pond in the solar energy glass room, nitrogen, phosphorus, natural pond liquid that potassium content is lower, irritate aquatic property plants such as in treating pond, cultivating water peanut, Herba Eichhorniae, under the photosynthesis of sun power, add rich water, the four seasons can gather in the crops, and the part of gathering every day is replenished the biogas raw material after crushed, can improve factor of created gase.On the other hand, the ammonia nitrogen in the liquid of natural pond is fully absorbed by waterplant, makes the clear qualified discharge of water outlet, and the toilet that also can be used for resident family is as wash water, the ecological purpose of having accomplished recycle fully.

The present invention adopts closed interaction, and the method for recycling with sewage disposal ecological patent matched with devices, finally obtains the sewage disposal renewable resource and utilizes product again, is a kind of effective ways that can avoid the continuous batch production of large vol to handle.

Description of drawings:

Fig. 1 is technological process of production figure of the present invention.

The biological treatment regeneration apparatus structure synoptic diagram that Fig. 2 adopts for the present invention.

Fig. 3 is a waterplant absorption cleaning pond orthographic plan among Fig. 2.

Embodiment:

As Fig. 1, biological treatment regeneration method of the present invention is as follows:

At a underground urban night soil, the sanitary wastewater digestion reactor buried underground, be separated into several lattice in the reactor, each compartment has certain liquid level poor, enclosing cover is put a solar energy glass room on the Horizon outside reactor, one waterplant is set in the solar energy glass room to be absorbed toward wandering treating pond, the aquatic property plant of plantation in this treating pond, the natural pond liquid of digestion reactor Mo Genei is poured in the waterplant absorption cleaning pond, planting aquatic property plant, the aquatic property plant that grows in the treating pond added again make cobalt blue pigment in the digestion reactor to replenish the biogas raw material; The anaerobic pond pool bottom sludge of digestion reactor is pumped into digestion reactor except that in other lattice especially of end, recycle the anerobe in the mud, to improve factor of created gase.

In anaerobic digestion process, want to improve factor of created gase to desirable state, general all is to adopt the temperature that improves anaerobic digestion reaction vessel, because anaerobic bacteria flora is in the time of 50～60 ℃, metabolic rate is the most active, commercial catering trade was on average produced day discharging sanitary sewage a 230～350T/d near but each one thousand families dwelling house comprised, so consider that it is uneconomic that external heat source improves temperature, therefore the present invention places digestion reactor underground 15M place to utilize underground heat, keeps the homo(io)thermism of reactor to carry out digestion reaction at 15～25 ℃ of normal temperature states.

Under the certain situation of above 15～25 ℃ of temperature, chemical oxygen demand is at 18000～25000mg/L, and biological oxygen demand (BOD) is at 15000～20000mg/L, and fixedly suspended substance is at 25000～30000mg/L, and general factor of created gase holds the gas ratio at 0.15～0.23m ³/ m ³D.

Adding concentration in invention is 0.01% tensio-active agent, then can reduce table at tension force, increase contacting of raw material and flora, gas production rate can improve 20～40%, add ultra-fine or nano active carbon dust, can improve 2～4 times of aerogenesis, that is to say, can improve gas production rate equally at the normal temperature state by adding necessary certain element of bacterium colony metabolism.

On digestion reactor, establish glass room, fully adopt sun power, though winter also can constant temperature at 20 ℃.

At anaerobically fermenting time ight soil as raw material, its gas production rate is lower, must in the liquid of natural pond, add the robust fibre cobalt blue pigment, to promote the sticking power of acidifying and Mierocrystalline cellulose and microorganism, promote the agglomerating performance of particle of mud, therefore the present invention establishes aquatic property plant absorbing treating pond in the solar energy glass room, nitrogen, phosphorus, potassium content than low level bog liquid, irritate aquatic property plants such as in treating pond, cultivating water peanut, Herba Eichhorniae, under the photosynthesis of sun power, add rich water, the four seasons can gather in the crops, and the part of gathering every day is replenished the biogas raw material after crushed, can improve factor of created gase.On the other hand, natural pond liquid 2 * 40 meters long toward wandering reciprocal 9 times of water channel, main-process stream reaches 360 meters, therefore the ammonia nitrogen in the liquid of natural pond is fully absorbed by waterplant, make the clear qualified discharge of water outlet, the toilet that also can be used for resident family is as wash water, the ecological purpose of having accomplished recycle fully.

2, the potential energy agitator is set on the pool wall of reactor anaerobic pond;

Because ight soil produces crust at liquid level easily when anaerobically fermenting, influence aerogenesis, because digestion reactor all is in closed state, concerning mechanical stirrer, the one, suffer corrosion damage at natural pond liquid easily, and be difficult to overhaul, and consume a large amount of electric energy and working cost, therefore the present invention utilize liquid level that the liquid level drop of reactor causes can wash away and smash the natural pond skull, and utilize liquid level impeller to smash device, impeller and smash device and adopted the macromolecular material manufacturing, be not afraid of the corrosion of natural pond liquid, bearing is made by tetrafluoroethylene has self lubricity, but life-time service is in corrosive environment, referring to Fig. 1.

3, biology is set and dwells and give birth to band in the anaerobic pond of digestion reactor, hold back instructionization high yield gas anerobe, lack the anaerobically fermenting cycle, reach main factor of created gase from reduction of area.

Shorten the biochemical treatment cycle, improve gas production rate, crucial how much deciding at the anaerobism bacterium colony, what run off is few more, it is The more the better to be deposited in reactor, must build one to bacterium colony so and settle down the dried rhizome of rehmannia of dwelling that adheres to, the present invention adopts the polyurethane foam band, because its flexibility can be waved with current as waterplant, so adaptability is difficult for choked flow by force, and can be under flow action, make and grow into the metabolism that comes off voluntarily of thick gluey microbial film gradually, and long-term stab to stay adapt to instructionization, the pollutent that provincialism is more stable in the digestion reactor.

4, the biogas in the digestion reactor is used for the sub-district, can supply the cooking life requirement of quite a few user in the sub-district.

5, the natural pond liquid in the digestion reactor is extracted concentrated the purification and make the fertilizer concentrated solution; Or the natural pond liquid in the digestion reactor extracted with the back granulation that is mixed of other raw material be processed into the granular organic fertilizer of cleaning, thereby the valuable organic resource of septic tank waste and the general layout of unattended and no economic benefit have been become.

Embodiment:

1, at first extract the underground sewage sludge of landfill yard, pig farm blowdown ditch mud and add the first lattice of digestion reactor and carry out bacterization, consumption is controlled at 5% of reactor total volume.To handle and generation biogas in order entering ahead of time, also can suitably to add some seed sludges, the waste water injected volume generally is no more than 50% of total volume, increases injected volume then day by day, until charging and load reach balance.

2, urban night soil, sanitary wastewater, anaerobism bacterium colony and tensio-active agent are added in the first lattice of this reactor.When urban night soil, sanitary wastewater are formally thrown in, allow liquid dung flow into grinder-mixer, be discharged into separating of oil, the settling pit of water again, remove nondegradable high molecule plastic fragment, sand setting, add liquid dung continuously to digestion reactor with pump then.Drop into digestion reactor once continuously every three hours, cause the impact flow of reinforced current, the thorough mixing active sludge.

3, extracted biogas in gas-holder every 3～5 hours, cause digestion reactor to produce negative pressure, be beneficial to bioenergy and drive that stirring of sewage stirred and biogas breaks away from active sludge, minimizing liquid level scum silica frost.

Waste water drops into digestion reactor every day when 4, initial, after reaching digestion reactor total volume balance in 5～10 days, extract through the waste water " natural pond liquid " of fully degraded from digestion reactor and render to the aquatic plant absorbing treating pond of sun power every day, the amount of extracting out is the input amount of waste water every day, natural pond liquid is reaching further purification being absorbed by waterplant toward the formula waterplant absorption cleaning pond of wandering, then discharging or use for user's undrinkable water.

5, fish for a certain amount of aquatic property plant from waterplant absorption cleaning pond every day, render to after crushed in the digestion reactor, the general and aquatic plants growth speed of the amount of fishing for balances each other.

6, the biogas that is produced uses for the user through the desulfurization dewatering device.

7, the superfluous natural pond liquid that extracts every day supplies double oxygen bacterium enlarged culturing 24 hours, and then through whirlwind-type settling tank precipitation, it is canned for the agricultural use to extract clear liquor.

8, the natural pond slag makes natural pond slag water ratio 25～30% by centrifugal filter, adds dry fly ash in electric power plant 30～50%, mixes and stirs, and through the Squeezinggranulator granulation, enters oven drying again, and metering packing uses for agricultural.

9, in order to improve factor of created gase, when the sewage charging, add 0.2～0.5% the ultra-fine powder of activated carbon, add 5～7% flyash (fuel-burning power plant waste material).

As Fig. 2, a kind of urban night soil that Fig. 2 adopts for the present invention, the biological treatment regeneration device of sanitary wastewater, it mainly is made up of digestion reactor 12, charging and discharging mouth 1,7, waterplant absorption cleaning pond 11, solar energy glass room 10 and connection pump P, pipeline and valve F etc.

Charging and discharging mouth 1,7 is arranged at two inboards of digestion reactor 12, its lower end communicates with digestion reactor 12, constitute charging and discharging water seal 2, the upper end is opened wide, waterplant absorption cleaning Chi11Gai places digestion reactor top 12, plant in the waterplant absorption cleaning pond 11 and be implanted with aquatic property plant, solar energy glass room cover places outside the waterplant absorption cleaning pond 11.

Digestion reactor 12 is made up of anaerobic pond 5, fluid level controller 17 and potential energy agitator 8.Become I with the division plate longitudinal subdivision in the anaerobic pond 5, II, the III lattice, I, division plate 3 tops of II compartment are higher than II, division plate 6 tops of III compartment, fluid level controller 17 is arranged in the III lattice, its position is lower than II, division plate 6 tops of III compartment, make I, II, the stepped decline of liquid level of III three lattice, I, II, III three lattice constitute horizontal comb up-flow district successively, comb stream district and recirculating zone, I, division plate 3 tops of II compartment are one protruding " broach " 3-1 to the inner bending of I lattice, the bottom is vertically arranged with protruding " broach " 3-2 to II lattice protrusion that a usefulness plate is bent in the I lattice, leave flow passage 3-3 between this protruding " broach " left side and pool wall, two " broach " 3-1, the 3-2 upper and lower settings, constitute one " S " type flow passage 3-4 in the I lattice, the flow process of natural pond liquid in I lattice pond extended; Be provided with a longitudinal divider 4 in the middle of in II, these division plate 4 tops to dwindle the crust face of II lattice pond liquid level, make the bioenergy supercharging of generation to I lattice bias, smash crust easily.Leave natural pond liquid passage 4-1 between at the bottom of division plate 4 bottoms and the pond, II lattice comb stream district is divided into the downward comb stream district in left side and the upwards comb stream district on right side again.I, II, III lattice are the inclined-plane at the bottom of the pond, and the lower end, inclined-plane offers mud backflow ditch 13,14,15, so that the mud at the bottom of the pond all pours the backflow ditch.The mud backflow ditch 15 of III lattice bottom links to each other with aquatic plant purification pond 11 with pump P by pipeline, valve F, and the mud in the digestion reactor 12III lattice bottom mud backflow ditch is poured in the waterplant absorption cleaning pond 11 with pump.And the mud backflow ditch 13,14 of I, II lattice bottom links to each other by interior following protruding " broach " 3-2 inner chamber of pipeline, valve F and pump P and I lattice, mud in digestion reactor 12I, the II lattice bottom mud backflow ditch is poured into following protruding " broach " 3-2 inner chamber in the I lattice with pump, recycle the anerobe in the mud, to improve factor of created gase.Because ight soil produces crust at liquid level easily when anaerobically fermenting, influence aerogenesis, the utility model is connected with potential energy agitator 8 on the pool wall above the pond face of anaerobic pond 5I, II lattice and II, III lattice.Potential energy agitator 8 is by water wheels 8-1, be with 8-3,8-5 motion-work wheel 8-2, middle multiplying wheel 8-4, follow-up pulley 8-6 and smash device 8-7 and form synchronously.Motion-work wheel 8-2, middle multiplying wheel 8-4 and follow-up pulley 8-6 all install on pool wall, synchronously band 8-3,8-5 is set on the bull wheel and follow-up pulley 8-6 of the steamboat of motion-work wheel 8-2 and middle multiplying wheel 8-4 and middle multiplying wheel 8-4, motion-work wheel 8-2 is installed on water wheels 8-1 one end, follow-up pulley 8-6 is installed on an end of smashing device 8-7, offer natural pond liquid outlet 3-5,6-1 in the middle of the division plate 6 of the division plate 3 of I, II compartment and II, III compartment, water wheels 8-1 places natural pond liquid outlet 3-5,6-1 one side in the II, III lattice, smashes on the natural pond liquid level that device 8-7 places I, II lattice.Utilize liquid level that the liquid level drop of reactor 12 causes can wash away and drive water wheels and rotate and smash device and smash the natural pond skull.Impeller and smash device and adopt the macromolecular material manufacturing, the corrosion of not being afraid of natural pond liquid, bearing is made self lubricity by tetrafluoroethylene, but life-time service is in corrosive environment.

Settle down the dried rhizome of rehmannia of dwelling that adheres to for building one to bacterium colony, make being deposited in the reactor of anaerobism bacterium colony, the present invention adopts and biology to be set in anaerobic pond II, III lattice to dwell on giving birth to and be with 9, dwell living carrying material of biology adopts the polyurethane foam band, because its flexibility can be waved with current as waterplant, so adaptability is difficult for choked flow by force, and can be under flow action, make to grow into the metabolism that comes off voluntarily of thick gluey microbial film gradually, and long-term stab to stay adapt to instructionization in the reactor.

As Fig. 3, some left and right division plate 11-1,11-2 have been horizontally arranged at interval in the waterplant absorption cleaning pond 11, parting dividing plate 11-1 left side wall on the left side links to each other with the left and right wall for the treatment of pond 11 respectively with the right wall that parts dividing plate 11-2 on the right side, part the right wall and the left wall lateral cross setting that parts dividing plate 11-2 on the right side of dividing plate 11-1 on the left side, in treating pond 11, constitute toward wandering natural pond liquid passage 16.Ammonia nitrogen in the liquid of natural pond is fully absorbed by waterplant more, make the clear qualified discharge of water outlet.

Claims

1, the biological treatment regeneration method of a kind of urban night soil, sanitary wastewater, it is characterized in that it comprises: at a underground urban night soil, the sanitary wastewater digestion reactor buried underground, be separated into several lattice in the anaerobic pond of digestion reactor, each compartment has certain liquid level poor, and urban night soil, sanitary wastewater are added in the first lattice of this reactor; Enclosing cover is put a solar energy glass room on the Horizon above the reactor; One waterplant absorption cleaning pond is set in the solar energy glass room, the aquatic property plant of plantation in this treating pond, natural pond liquid in the digestion reactor is poured in the waterplant absorption cleaning pond, planting aquatic property plant, the aquatic property plant that grows in the treating pond added again make cobalt blue pigment in the digestion reactor to replenish the biogas raw material; The anaerobic pond pool bottom sludge of digestion reactor is added in the digestion reactor, the biogas in the digestion reactor is extracted out used for the user.

2, the biological treatment regeneration method of a kind of urban night soil according to claim 1, sanitary wastewater is characterized in that adding flyash and tensio-active agent in digestion reactor.

3, the biological treatment regeneration method of a kind of urban night soil according to claim 1, sanitary wastewater, it is characterized in that the potential energy agitator is set on the pool wall of reactor anaerobic pond, utilize the liquid level drop of reactor anaerobic pond to cause washing away of liquid level energy to smash the natural pond skull that reactor anaerobic pond liquid level is formed.

4, the biological treatment regeneration method of a kind of urban night soil according to claim 1, sanitary wastewater is characterized in that being provided with biology and dwells and give birth to band in the anaerobic pond of digestion reactor.

5, the biological treatment regeneration method of a kind of urban night soil according to claim 1, sanitary wastewater is characterized in that the natural pond liquid in the digestion reactor is extracted concentrated the purification makes the fertilizer concentrated solution.

6, the biological treatment regeneration method of a kind of urban night soil according to claim 1, sanitary wastewater is characterized in that the mud in the digestion reactor extracted with the back granulation that is mixed of other raw material and makes organic fertilizer particles.

7, a kind of urban night soil, the biological treatment regeneration device of sanitary wastewater, it is characterized in that it comprises digestion reactor (12), advance, discharge port (1), (7), waterplant absorption cleaning pond (11), glass room (10) and connection pump, pipeline and valve, advance, discharge port (1), (7) be arranged at the both sides of digestion reactor (12), its lower end communicates with digestion reactor (12), waterplant absorption cleaning pond (11) lid places digestion reactor (12) top, plant in the waterplant absorption cleaning pond (11) and be implanted with waterplant, natural pond liquid in the digestion reactor (12) pours in the aquatic plant purification pond (11), and glass room (10) cover places outside the aquatic plant purification pond (11).

8, a kind of urban night soil according to claim 7, the biological treatment regeneration device of sanitary wastewater, it is characterized in that digestion reactor (12) comprises anaerobic pond (5) and fluid level controller (17), become I with the division plate longitudinal subdivision in the anaerobic pond (5), II, the III lattice, I, the division plate of II compartment (3) top is higher than II, the division plate of III compartment (6) top, fluid level controller (17) is arranged in the III lattice, its position is lower than II, the division plate top of III compartment, make I, II, the stepped decline of liquid level of III three lattice, I, II, III three lattice constitute horizontal comb up-flow district successively, comb stream district and recirculating zone, I, II, III three lattice bottoms offer mud backflow ditch (13), (14), (15), mud backflow ditch (13), (14), (15) pass through pump, pipeline, valve links to each other with waterplant absorption cleaning pond (11) or/and anaerobic pond (5).

9, the biological treatment regeneration device of a kind of urban night soil according to claim 8, sanitary wastewater, the division plate top that it is characterized in that I, II compartment is a protruding broach (3-1) to the inner bending of I lattice, the bottom is vertically arranged with the protruding broach (3-2) to II lattice protrusion that a usefulness plate is bent in the I lattice, two broach (3-1), (3-2) upper and lower settings, in the I lattice, constitute a S type flow passage, leaving flow passage (3-3) between protruding broach (3-2) left side and pool wall down, broach (3-2) inner chamber links to each other with pump by pipeline, valve.

10, a kind of urban night soil according to claim 8, the biological treatment regeneration device of sanitary wastewater, it is characterized in that anaerobic pond (5) I, II lattice and II, be connected with potential energy agitator (8) on the pool wall of the face top, pond of III lattice, potential energy agitator (8) comprises water wheels (8-1), be with synchronously (8-3), (8-5), motion-work wheel (8-2), middle multiplying wheel (8-4), follow-up pulley (8-6) and smash device (8-7), motion-work wheel (8-2), middle multiplying wheel (8-4) and follow-up pulley (8-6) all install on pool wall, be with synchronously (8-3), (8-5) be set on motion-work wheel (8-2) and middle multiplying wheel (8-4) and middle multiplying wheel (8-4) and the follow-up pulley (8-6), motion-work wheel (8-2) is installed on water wheels (8-1) end, follow-up pulley (8-6) is installed on an end of smashing device (8-7), I, division plate of II compartment (3) and II, all offer natural pond liquid outlet (3-5) in the middle of the division plate of III compartment (6), (6-1), water wheels (8-1) place II, natural pond liquid outlet (3-5) in the III lattice, (6-1) side is smashed device (8-7) and is placed I, on the natural pond liquid level of II lattice.