JP3049164U - Merged glass fiber reinforced plastic septic tank - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a combined glass fiber reinforced septic tank for efficiently treating wastewater. SOLUTION: A combined glass fiber reinforced septic tank is a first sedimentation separation tank having a sewage inlet 11, an exhaust hole 12, a decomposition layer 13 having many pores, and a flow guide plate 14 for sedimenting large scum. 1, a large sediment sedimented in the first sedimentation separation tank 1 is sedimented therein to form a bacterial bed, and a second sedimentation separation tank 2 for anaerobic decomposition at an elementary stage, a solid-liquid separation plate 31, and a contradictory difference A circulation separation tank 3 having a circulation plate 32;
Aeration tank with air discharge pipe, biological filter material, and backwash pipe, hollow column for draining wastewater coming from the aeration tank from top to bottom, overflow to increase flow area, concentration of suspended solids A sedimentation tank with an air lift pump that sends back sludge deposited on the bottom to the second sedimentation separation tank, a disinfectant tank that sucks disinfectant or chlorine from the vat to disinfect sewage, and a cleaning and maintenance of the inside. And a cleaning hole to be provided to the user.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a combined-type septic tank used for treating sewage, and particularly to a combined-type glass fiber-reinforced plastic septic tank (hereinafter, “glass fiber-reinforced plastic” is referred to as FRP (Fiberglass reinforced plastic)). .

[0002]

[Prior art]

 Conventionally used combined sewage treatment tanks, as shown in FIG. 1, include a tank 9 for passing sewage, and this tank 9 has a sewage inlet 90 and a sewage outlet 96. When it enters the first sedimentation separation tank 91, it is filtered through a simple scum filter 911, but it only filters the scum and has an advanced decomposition action. Since there is no filter, the small hole of the filter 911 is easily closed, and the function of the filter 911 is easily lost. Severely, the entire sewage treatment system will be blocked, causing difficulty in maintenance and repair at a later date. Furthermore, even when entering the first sedimentation separation tank 91, other effective auxiliary equipment, for example, a decomposition tank for decomposing and softening organic substances and suppressing the generation of scum, and for rapidly separating solids, liquids and gases. The contact area is increased, the residence time is extended, the efficiency of the anaerobic treatment is increased, the treatment by methanation is performed, and the relatively large organic matter in the wastewater is effectively decomposed and then precipitated. There is no effective auxiliary equipment to allow the sedimentation separation tank 92 to enter, and therefore the treatment process in which sewage passes is short, so that relatively large organic matter in the tank cannot be effectively decomposed by anaerobic action. In addition, the function of the sedimentation separation tank is not performed. Further, the sewage that has entered the air release tank 93 requires a large amount of air to dissolve particles in the sewage, so that a large amount of power is used and energy is wasted. Furthermore, biochemical oxygen demand in the discharged wastewater (hereinafter “biochemical oxygen demand” is referred to as BOD (Biochemical oxygen demand)) and suspended solids (hereinafter “suspended solids” are referred to as SS (suspended). solid)) does not meet the requirements, the amount of sludge increases, and the processing takes time. Next, the wastewater enters the sedimentation tank 94 and the disinfection tank, and after having undergone the final sedimentation and disinfection treatment, the purified sewage is discharged from the sewage outlet 96.

[0003]

[Problems to be solved by the invention]

 However, the above-mentioned conventional combined sewage treatment tank does not have a facility for removing and decomposing floating slag, so it is necessary to add it.Moreover, since there is no circulating plate and a separating plate for solid and liquid, these must be added. In addition, it is necessary to effectively enhance the anaerobic action to break down relatively large organic matter particles, and to reduce the amount of BOD and SS to reduce sludge.

Accordingly, a main object of the present invention is to provide a combined FRP purification tank that efficiently treats wastewater.

[0005]

[Means for Solving the Problems]

 According to the merged FRP purifying tank according to claim 1 of the present invention for solving the above-mentioned problems, the first sedimentation separation tank, the second sedimentation separation tank, the circulating separation tank, and the air separator are provided therein. A tank, a sedimentation tank, a disinfection tank, and a cleaning hole are provided. The first sedimentation separation tank has a sewage inlet, an exhaust port, a decomposition tank having many pores, and a flow guide plate that allows large inclined sludge to settle down to form a bacterial bed.

The second sedimentation / separation tank is provided with an opening to allow the large filth settled in the first sedimentation / separation tank to enter therein to form a bacterial bed and to promote an elementary anaerobic decomposition action. The diversion tank has several solid-liquid separation plates, and several mutually opposite diversion plates are installed.When sewage enters this tank, it strikes the solid-liquid separation plate first. After the large organic matter settles to the bottom by anaerobic action, it is broken down into relatively small particles, and these small particles flow together with the water, pass through one circulation plate, and then separate into solid liquids. The particles collide with the plate and become smaller, and the same operation is repeated several times in this circulating separation tank, and finally the particles become the smallest.

[0007] The air release tank has an air discharge tube, and a biological filtration material is installed above the inside thereof to increase the contact area for oxidative decomposition of microorganisms. Spray to wash off the thick biofilm on it. Next, the sedimentation tank has a hollow column in it, forcing the sewage coming from the aeration tank to flow down from the top to the bottom of the surrounding wall of this hollow column, and further to a place slightly lower than the water level. In addition to providing several overflow stoppers, several inclined stopper plates are installed at the bottom, SS in the sewage is settled downward, and the sludge settled at the bottom by the air rising pump is returned to the second settling tank again. Send back inside.

[0008] The disinfection tank disinfects the treated wastewater coming from the preceding stage with a disinfectant or chlorine. Several cleaning holes are installed above the sewage treatment tank, and are round holes used for cleaning the holes in the tank. The decomposition layer in the first sedimentation separation tank decomposes and softens the scum in the sewage and suppresses its re-generation. The second sedimentation / separation tank forms a fungal bed with the sedimentation of filth, and performs elementary anaerobic decomposition. The circulating separation tank has the effect of repeatedly impacting, sedimenting, and decomposing large filths in the order of the solid-liquid separation plate and the circulating plate, and finally to very small particles. In the aeration tank, air is blown into the wastewater, causing microbes to adhere to the biological filtration material, lowering the BOD in the wastewater, and the biofilm accumulated on the surface of the biological filtration material in the washing pipe. Wash off regularly. In the sedimentation tank, SS is settled as much as possible, and the settled sludge is sent back to the second sedimentation separation tank again to be treated again. Sewage that has reached the discharge standard is sent to the next disinfection tank. The disinfection tank disinfects sewage that has reached this discharge standard with a disinfectant or chlorine before discharging it to the outside.

[0009]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 2, the combined FRP purification tank of the present embodiment includes a first settling tank, a second settling tank, and a circulating separation tank in the preceding stage, and an air exposure tank in the subsequent stage. It contains a settling tank and a disinfection tank.

The first sedimentation / separation tank 1 generally has a sewage inlet 11 for inflowing sewage above the side, an exhaust hole 12 for discharging gas above the side, and a material made of a material resistant to acid and caustic. The wastewater inlet 11 passes through the decomposition layer 13, and the wastewater is discharged under the decomposition layer 13. The decomposed layer 13 is located below the water level to prevent the floating of the scum and to soften the scum to suppress the increase, and to further precipitate the slanted large organic substances downward to form a fungal bed. A flow guide plate 14 to be formed is contained.

The second sedimentation / separation tank 2 is provided with a stopper plate 21 having a hole 22 between the second sedimentation / separation tank 1, and is guided by the flow guide plate 14 of the first sedimentation / separation tank 1 to settle the sedimentation. The large-sized waste particles enter the second sedimentation / separation tank 2 through the holes 22 of the stopper plate 21 and settle, forming a fungus bed to perform anaerobic decomposition at the elementary stage. Enters the next processing unit via, and receives further processing.

The next circulation separation tank 3 is composed of a solid liquid separation plate 31 slightly higher than the water level, which is obtained by connecting conductive plates obtained by sewing two pieces each having an appropriate length, and a floor plate which is staggered to face each other. As shown in FIG. 4, when the sewage coming from the guide tube 23 enters the flow separation tank 3, it collides with the solid / liquid separation plate 31 first, as shown in FIG. Since the solid-liquid separation plate 31 has the function of trapping and decomposing, when a large organic substance hits the solid-liquid separation plate 31, the speed decreases and sinks to the bottom, and the solid-liquid separation plate 31 is blocked. As a result, the flow rate of the sewage decreases, and large-sized filth forms a bed on the bottom. These large filths are decomposed by anaerobic action and become smaller, and at the same time, methane bubbles are generated, and the specific gravity becomes small. It collides with the plate 31 and repeats the same. Due to such repeated circulation of sedimentation → decomposition → generation of small particles with bubbles, the smallest organic matter flows together with the water flow and enters the next processing unit via the guide pipe 33. This circulating separation tank 3 has a circulating action and increases the effective volume, increases the residence time and contact area therein, and enhances the action of separating solids and liquids.

As shown in FIG. 3, the next air exposing tank 4 has many air holes, is provided with an air discharge pipe 41 for dispersing gas into water, increases the contact area for oxidative decomposition of microorganisms, and increases wastewater. In order to reduce the value of BOD in the medium and achieve the emission standard, a biological filter medium 42 is added above the inside, and in order to wash out the thick biofilm accumulated on the biological filter medium 42 due to long-term use, A backwashing pipe 43 is provided to periodically wash the biological filter medium 42 in reverse, and the dropped biofilm is sent from the guide pipe 45 to the next processing unit for processing to maintain the life of the biological filter medium 42. .

Further, in the next sedimentation tank 5, since there is filth not yet spoiled or SS in the sewage treated in the aeration tank 4, they are passed through the guide pipe 45 and settled in the sedimentation tank 5. Sent to and processed. The sedimentation tank 5 has a hollow column 51 and is connected to the guide pipe 45, and the sewage coming from the air exposing tank 4 flows down from the top along the peripheral wall of the hollow column 51 and has an unstable flow rate. To prevent the deposition of SS from being hindered, and at the same time, provide several overflow stops 52 slightly lower than the water level, increase the surface area through which the fluid passes, stabilize the water flow, and set the SS to sink by its own gravity. Further, several inclined settling stoppers 53 are installed in the lower part of the interior, and the SS in the sewage is caused to collide with the settling stoppers 53 and then concentrated downward. The deposited sludge is sent back into the second sedimentation separation tank 2, and the circulating decomposition proceeds again. After passing through such a process to reduce the SS in the wastewater to the discharge standard or less, the wastewater of the discharge standard coming above the sedimentation tank 5 is sent from the guide pipe 55 into the disinfection tank 6 of the next processing unit. Can be

The disinfecting tank 6 receives the sewage treated in the sedimentation tank 5 from the guide pipe 55, sucks out a disinfectant or chlorine from the chemical trough 61, mixes it into the sewage, performs disinfection, and is disinfected. The sewage is discharged from a sewage outlet 62. This completes the wastewater treatment of this combined FRP septic tank. In addition, several round cleaning holes are installed above this combined FRP septic tank and used when cleaning the inside of the tank.

[0016] The decomposition layer of the present invention enhances the anaerobic decomposition action to effectively atomize the granular waste, and the operation of colliding the granular waste in the wastewater by the solid-liquid separation plate is repeated many times. In addition to gradually reducing the size of the grains, BOD and SS in wastewater can be thoroughly reduced by repeated precipitation and anaerobic decomposition.

[Brief description of the drawings]

FIG. 1 is a perspective view of a conventional merged sewage treatment tank.

FIG. 2 is a perspective view of a front part of the combined FRP septic tank according to the embodiment of the present invention.

FIG. 3 is a perspective view of a rear part of the combined FRP septic tank according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view of the circulation separation tank of the combined FRP purification tank according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 First sedimentation separation tank 2 Second sedimentation separation tank 3 Round flow separation tank 4 Air exposure tank 5 Sedimentation tank 6 Disinfection tank 11 Sewage water inlet 12 Exhaust hole 13 Decomposition layer 14 Flow guide plate 21 Stop plate 22 Hole 23, 33, 45, 55 Guide tube 31 Solid liquid separation plate 32 Flow plate 41 Air release tube 42 Biological filtration material 43 Backwash tube 51 Hollow column 52 Overflow stop 53 Settlement stop plate 54 Air rising pump 61 Chemical trough 62 Sewage outlet

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yang Masa proverb No. 27, Donggang Township, Pingtung County, Taiwan No. 27 (72) Inventor Yang Chengjie No. 27, Donggang Township, Pingtung County, Taiwan

Claims (1)

[Utility model registration claims] 1. An upwardly formed sewage inlet, an upwardly formed exhaust hole, a decomposition layer made of an acid and rust resistant material, having a plurality of pores, located below a water level, and a large organic substance. Having an inclined flow guide plate that precipitates downward to form a bacterial bed, the sewage inlet penetrates the decomposition layer and discharges sewage below the decomposition layer, and the scum is trapped by the decomposition layer, The first sedimentation separation tank that is softened and decomposed into water, and the particulate waste deposited in the first sedimentation separation tank enters through the hole of the stop plate that is installed next to the first sedimentation separation tank, and precipitates inside, and the first step The sewage, which forms a fungal bed that decomposes anaerobically, and the rudimentary decomposed sewage flows into the next treatment unit from the guide tube, and is internally sewn with two appropriate lengths Solid liquid separation plate of floor plate connected with conductive plate, and circulating plate of floor plate facing each other staggeredly Containing, the solid liquid separation plate is higher than a predetermined water level, and when sewage enters from the guide pipe, it first collides with the solid liquid separation plate, and large filth is decelerated and stopped at the bottom, Decreases to form a bacterial bed,
The granular waste again degrades by generating anaerobic action, the grains become smaller and more air-bubble and have a lower specific gravity, these grains are also carried in the water stream and pass through the circulating plate,
In addition, it collides with another solid liquid separation plate, repeats the same operation as above, and finally has a circulating separation tank that becomes the smallest particle and flows together with the water flow, and has a plurality of pores, and on average gas is put into water An air discharge pipe that discharges, a biofilter that is installed above and increases the contact area for microbial oxidative degradation, and is periodically turned upside down to wash and remove thick biofilm that accumulates on the biofilter. A backwash tube for washing and maintaining and regenerating the life of the biological filtration material, and an air-exposed tank containing a guide tube for sending sewage to the next processing unit; and an inflow tank connected to the guide tube and flowing from the air-exposed tank. A hollow column that allows sewage water to flow downward from above the surrounding wall,
Increasing the water flow area to a position slightly lower than the water level, stabilizing the water flow and separating suspended solids, a plurality of inclined stopper plates to settle by its own gravity, the sludge deposited at the bottom of the second settling An air lift pump that is sent back to the separation tank,
And a sedimentation tank having a guide pipe for sending sewage that already meets the discharge standard to the next processing unit, receiving the sewage that meets the discharge standard coming from the sedimentation tank from the guide pipe, sucking up a disinfectant and chlorine from a chemical vat, A merger comprising a disinfection tank having a sewage outlet that mixes and disinfects sewage and discharges the sewage to the outside, and a plurality of cleaning holes that are installed above and that can be used for internal cleaning work. Glass fiber reinforced plastic septic tank.