Glass Steel septic tank FRP septic tank uses glass fiber, agricultural production system resin and other highly acid and alkali resistant materials to form in one time, with good sealing performance. The product structure design is reasonable, and the pressure is uniform without deformation. It occupies a small area and saves land resources. Convenient installation and construction, good treatment effect, long service life, moisture resistance, oxidation resistance, no deformation at high and low temperatures, low economic indicators, the Ministry of Urban Construction door Environmental protection products to be promoted.
Construction flow
Cleanout well
1. The backfill meets the requirements of the construction specification, and the cleanout well (inspection well) can be built on the tank body. The cleanout well has brick wells and groups Desktop There are two kinds of prefabricated reinforced concrete wells.
2. In order to prevent leakage of brick shaft wall, the inner and outer walls of the inspection shaft are required to be waterproof mortar Plastering layer, 20mm thick (1:2 waterproof mortar, internal reference cement 5% of the weight of waterproof agent), and 45% of the internal corners. The slope is 50mm thick. If there is underground water, apply two layers of hot asphalt (or other waterproof coating) on the outer wall of the well, and cover the soil to the floor.
Construction precautions
1. The geological conditions shall be mastered during foundation excavation
2. The setting position and buried depth of FRP septic tank shall be set out and positioned in strict accordance with the design requirements.
3. After the FRP septic tank is in place, it shall be backfilled in time, and the tank shall be filled with water to prevent displacement. Backfill is required to be screened, and there are no sharp stones and construction waste. When there is no groundwater, the density of the soil is 0.95 and it is compacted. Special attention shall be paid to filling the lower periphery of the tank with plain soil or yellow sand: when there is groundwater, the lower part of the tank shall be filled with plain soil or yellow sand, and the fixed position of the tank shall be evenly stressed.
4. During construction in rainy season, drainage facilities shall be provided to prevent ponding in foundation pit and slope collapse, and the tank body shall be filled with water to prevent floating and displacement.
5. The construction shall be carried out in accordance with the provisions of relevant engineering construction and acceptance specifications.
advantage
1、 Save money
Fiberglass septic tank adopts factory, mechanization, batch production, integrated production, new technology and new materials, with small volume and large effective volume.
2、 Save labor and time
Fiberglass septic tank is integral in shape, light in weight and height, and easy to install.
3、 Province
Fiberglass septic tank saves land excavation area.
IV
The fiberglass septic tank has good sealing performance and can handle feces. The anaerobic decay effect is more than twice that of the traditional septic tank.
5、 Environmental protection
The FRP septic tank is produced in a whole shape, with good sealing performance, no leakage, no pollution to surface water, no corrosion to flowers, trees, wires and cables around the septic tank. High position siphon drainage is adopted in the tank for multiple sedimentation and purification.
6、 Durable
FRP septic tank is made of new material FRP, which is resistant to aging, acid and alkali, and has a service life of more than 50 years.
7、 High compressive strength
All FRP septic tanks are 50 steel resin sealed, cylindrical, and their compressive strength is several times higher than that of polygon and square.
8、 No post management, long slag cleaning cycle
The GRP septic tank is buried, without power, maintenance and management in the later period.
usage method
l、 The selection of FRP septic tank is based on different buildings, and the design parameters are calculated by the designers of individual projects.
2. The location of FRP septic tank shall not affect the building foundation in principle; Generally, the distance from the domestic drinking water tank shall not be less than 10m, and the distance from the underground water intake structure shall not be less than 30m. When the building foundation plane is higher than the septic tank foundation plane, the distance from the outer wall of the septic tank shall not be less than 2m. When the building foundation plane is lower than the septic tank foundation plane, the clear distance from the outer wall of the septic tank to the outer wall of the building shall not be less than 5m.
3. The overall FRP septic tank is also covered with 0.3m soil, which should not exceed 3m. In cold areas, when the temperature is lower than - 10 ℃, the soil covering height of the septic tank shall not be less than 12m. In areas where the average temperature in cold months is lower than - 13 ℃, when the designer considers the setting height of the FRP septic tank, the sleep of the FRP septic tank should be set below the freezing line of the area.
4. The FRP septic tank shall be installed under the green belt, lawn and sidewalk, and the soil cover shall not exceed 1.5m; It can also be installed in road sections.
5. Manhole cover: when the vehicle is not accessible, the light double layer manhole cover and cover seat with lock shall be adopted; When passing the vehicle, use the locked heavy double deck. In consideration of the greening needs of the community or the paving needs of the road and square, the cast iron or polymer manhole cover is flat with the ground. Where there is paved ground, the manhole cover can be properly lowered below the paved floor tile. When the paved floor tile on the manhole cover must be opened when the manhole cover needs to be opened.
6. If the volume of FRP septic tank exceeds 50 m3; Two single tanks can be set in parallel or in series. If they are in series, the designer and the user must notify the manufacturer in advance of the presetting. The distance between the outer walls of the tank body shall not be less than 500 mm.
Installation and use
Foundation pit excavation treatment
The positioning and setting out of FRP septic tank products shall be determined according to the engineering design drawings, and the foundation pit can be excavated according to the selected model and the given size. When the foundation pit is excavated to the predetermined elevation, the lime soil cushion shall be compacted, and the bearing capacity of the foundation shall not be less than 1OOKN/㎡. When the yellow sand 500mm-1OOmm thick is used as the cushion, remove the large bricks or choked debris carried in the sand, level and compact it, and prepare the integrated septic tank for installation.
When the FRP septic tank is installed in combination or there is groundwater and the soil quality of the foundation soil is very poor, 100mm thick pebbles or crushed stones shall be paved and compacted. A 100mm - 300mm C1O concrete cushion shall be set on the foundation, and a 100mm sand cushion shall be paved on the concrete cushion. Both sides of the tank body shall be filled with plain soil.
Precautions for hoisting
1. The base cushion must be leveled before hoisting in place
2. Pay attention to the direction of septic tank inlet and outlet when hoisting
3. The elevation of septic tank must meet the engineering design requirements
4. After hoisting in place, adjust it locally to make it horizontal
Septic tank irrigation
After the FRP septic tank is hoisted in place and meets the requirements, 1/3 of clean water must be poured into the tank to make it stable, and then manual compaction shall be carried out.
Layered backfill
When the FRP septic tank is in place, it shall be backfilled. The lower part of the tank shall be filled with sand (the height shall not be less than half of the tank diameter). It is strictly prohibited to use construction waste as soil backfill. The stones in the backfill shall be removed. The backfill soil shall be compacted in layers, and each layer shall be connected with 30mm. It is advisable to use manual compaction. When backfilling, local strong impact (such as air tamping) shall not be allowed, The backfill around the pool must be compacted.
characteristic
Unique design, pressure and impact resistance
The unique circumferential dense corrugated structure design of fiberglass septic tank makes its compressive strength and impact strength several times stronger than those of square, cylindrical and spherical arch. It can be used in different situations without any other reinforcement measures. According to the inspection of Hebei Provincial Product Quality Supervision and Inspection Institute, there is no abnormality in the normal 20 ton truck and the enhanced 40 ton truck. Compact structure and space saving
The product has a compact structure and a small floor area. The actual floor area is about 60% of the traditional septic tank, saving land resources.
Convenient installation, labor and time saving
Factory production, light weight, convenient transportation, flexible site selection, short construction period, low construction cost, can be installed and used on the same day.
No leakage, good tightness
The product is made as a whole, with technology, no cracks, no leakage, avoiding the traditional septic tank, which affects the safety of groundwater and buildings due to leakage.
Green and environmentally friendly, easy to manage
Economical and practical, cost saving
The budget price is about 20% lower than that of the reinforced concrete septic tank, which is basically the same as that of the brick septic tank. YJBH septic tank is of good quality, low price and economy
The affordable and ideal products are well received by real estate development companies, construction units and construction units.
Durable and safe
High polymer composite materials are used to conform to the development trend of materials, which are not easy to age, not deformed, acid and alkali resistant, corrosion resistant, and have the same service life as buildings in normal use. Eliminate the situation that the traditional septic tank is not suitable for acidic sewage.
market prospect
At present, domestic sewage is increasingly polluting the environment. On the basis of summarizing the imported domestic sewage treatment processes, combined with the company's scientific research achievements and engineering practice, this product is a kind of domestic sewage treatment equipment with energy saving, light weight and low price, which uses polymer composite materials and is produced in a factory. It has successfully replaced the traditional brick and steel septic tanks, which pollute the groundwater quality and affect the safety of surrounding buildings due to leakage and poor operating conditions. This product uses the gravity flow of water, without any external power and operating costs, saves energy, and is easy to manage. It has good social, environmental and economic benefits.
