Overall biological septic tank is glass fiber reinforced unsaturated polyester resin of high strength glass fiber composite materials as the main material, the use of advanced glass tube production process of steel winding wheels plus concave and convex shape head structure. Simplified wall thickness, add disk space and other structural calculation software using ansVs strength, rigidity optimal design, structural design unique technology 'technical lead, light weight, high strength, good corrosion resistance, no leakage, no pollution , good shape, long service life. Into the cell body has two ends, outlet pipe and the tank top with inspection pit, pool with a diaphragm plate separate compartments, and circulation pan with water to increase water retention time of installation, increased corruption effect. 
 Scope: 
 Residential buildings, office buildings, schools, nursing homes, business workshops, living rooms and other industrial civil life, the preliminary treatment of sewage waste. 
 How it works: 
 Septic tank is a principle of using anaerobic digestion to remove sediment and suspended solids of sewage organic matter the most basic sewage treatment tank contains large amounts of manure, litter, insect pathogens and other impurities, suspended solids concentration of 100-350mg of solid children, BOD5 concentration of organic matter among children in the 100-400mg, of which the organic matter suspended in the 50-200mg BOD5 children. Sewage into the septic tank after 12-24h of precipitation 50% -60% removal of suspended solids. Sludge settling down more than 3 months after anaerobic digestion, decomposition of organic matter in the sludge into a stable inorganic, perishable raw sludge into a stable mature sludge, changed the structure of the sludge, reducing the moisture content of sludge, regular Qingtao Sinotrans, landfill or used as fertilizer. 
 Product performance and characteristics: 
 1, the product of high quality glass fiber composite materials, is acid, alkali resistance, tensile, compression, anti; in the attack, strength advantages, life can be synchronized with the construction. 
 2, sealing, and no leakage, thoroughly traditional septic tanks to prevent leakage arising from the pollution of groundwater. While improving the swampy ground subsidence damage to the building, with good environmental benefits. 
 3, the device uses a unique design and high biofilm fill subjects, high removal efficiency, small footprint, flexible site selection, particularly in the area suitable for transformation of the old city sewer system construction set up septic tanks. 
 4, the product light weight, easy to transport. Overall product shape, no assembly, installation and quick. 
 5, products with high compressive strength can be installed in the green lawn, can also be installed under the roads. 
 Flowchart: 

 Product specifications make-inch: 

 Effective volume (m3) 3 5 7 10 13 15 20 25 30 35 40 45 50 
 Specifications 
 Dimension L (mm) 1600 1900 2800 4000 4400 4750 6250 7900 7900 7750 6700 7300 8200 
 φ (mm) 1500 1800 1800 1800 2000 2000 2000 2000 2200 2400 2800 2800 2800 


 Septic tank section, plans 

 1 out of pipe diameter, determined by the designer, manufacturer from time to time in ordering available. Factory installed in the septic tank, and make the body tube sealed with the pool. 
 2, out of the water diversion tube with baffle instead. 
 3, pan-water circulation device the size of the hole from the factory complete set under the partition. 
 4, the inspection well to the inner and outer wipe waterproof mortar (with waterproof mortar 1:2, plus 5% by weight of cement waterproofing agent), to assemble the well wiping edge, thick 20mm. 
 1, the list of sludge volume by 0.7 liters / person per day, water 50 liters / person per day, time of stay 12-24 hours. 
 2, the list of calculated average household of 4 people. 
 3, the same argument used is extended to 540 days of the Qing Tao.