Integrated underground sewage treatment equipment
details
一�/FONT>Overview
As the economy and the growth of population, the pollution becomes more and more brought to the attention of the human nature, in the sewage treatment plant in China and on the basis of operating experience, design a kind of can be set up ground of complete sets of organic wastewater treatment plant, the equipment adopts advanced technology and production technology at home and abroad in the late ninety s, produced with glass fiber reinforced plastic, stainless steel as the main raw material of the sewage treatment equipment. The aim is mainly to make domestic sewage and similar industrial organic waste water treated by the equipment to meet the discharge standards required by users.The equipment is mainly used for domestic sewage treatment in residential areas (including villa areas), high-end hotels, hospitals, comprehensive office buildings and various public buildings. All the equipment can be buried in the ground, so it is called "integrated underground sewage treatment equipment".
5�/SPAN>The integrated underground sewage treatment equipment adopts internationally advanced biological treatment technology, which can remove BOD5, COD and nh3-n. Its technical performance is stable and reliable, and its treatment effect is good,Investment province, less land, easy maintenance.
二�/FONT>Technological details
The integrated underground sewage equipment is designed for the treatment of domestic sewage and similar industrial organic sewage. Its main treatment method is to adopt the relatively mature biochemical treatment technology at present, contact oxidation method. The water quality parameters are designed according to the general water quality of domestic water, 200 mg/l of inlet bod and 20mg/l of outlet water. There are six parts in total:(1)primary sedimentation tank(2)contact oxidation tank(3)secondary sedimentation tank(4)disinfecting tank,disinfection device(5)sludge-tank(6)Wind machine room, fan.
The following are discussed respectively:
ï¼?ï¼?/SPAN>Primary sedimentation tank: the initial sedimentation tank of the equipment is vertical sedimentation tank, and the rising velocity of sewage in the sedimentation tank is 0.6-0.7 mm/s,the precipitated sludge is carried by air to the sludge tank.(Note:0.5-5m3/h no initial sink)
ï¼?ï¼?/SPAN>Contact oxidation tank: after initial sinking, water will flow into contact tank for biochemical treatment. Contact tank is divided into three levels, with a total residence time of more than one hour. The contact oxidation time of the enhanced equipment can reach 6 hours, and the packing is a new trapezoid packing. Easy to conjunctiva, not blocked. The specific surface area of the filler is 160m2/m3, and the gas-water ratio of the contact pool is around 12:1. (note: 0.5-5t/h, contact pool is level 2)
ï¼?ï¼?/SPAN>Secondary sedimentation tank: after biochemistry, sewage flows to the secondary sedimentation tank. The secondary sedimentation tank is two vertical sedimentation tanks, which operate in parallel. The rising velocity is 0.3-0.4mm/s. Sludge discharge is carried up to the sludge tank by air. (note.5-5mt/h, sludge flows into the sludge tank by itself)
ï¼?ï¼?/SPAN>Pool disinfection and sterilization equipment, sterilization tank according to the specification: "tji4-74" standard for 30 minutes, and if the hospital sewage, disinfection pool can increase retention time to 1-1.5 hours, using solid chlorine tablets dissolve contact disinfection, sterilization device can change the dosage according to the size of the water yield, achieve water add more medicine, less water less dosing. Other disinfection devices may be prepared separately. (note: for industrial sewage disinfection ponds and disinfection devices, please do not use)
ï¼?ï¼?/SPAN>Sludge tank: all sludge in the initial and secondary sedimentation tanks is carried by air into the sludge tank of wsz-a for aerobic digestion. The clean water from the sludge tank is returned to the contact oxidation tank for retreatment. After digestion, the remaining sludge is little, usually cleaned once every 1-2 years. The cleaning method can use a septic tank from the inspection hole of the sludge tank into the bottom of the sludge, for external transport. (wsz-a 0.5-5t/h, anaerobic digestion of sludge)
ï¼?ï¼?/SPAN>Wind machine room, fan: the wind machine room of buried domestic sewage equipment is located in the upper part of disinfection pond, the entrance USES double layer sound insulation, the air inlet has muffler, fan filter, therefore running without noise. The fan adopts two l-type roots blower fans, which can run alternately automatically. The operating life of a single fan is about 30,000 hours
三�/FONT> Features of Equipment
ï¼?/FONT>1ï¼?/SPAN>Buried below the surface, the surface above the equipment can be used for afforestation or other land, no need to build houses and heating, insulation.
ï¼?/FONT>2ï¼?/FONT>The two - stage biological contact oxidation treatment processes all adopt push - flow biological contact oxidation, and the treatment effect is better than that of the two - stage or fully mixed biological contact oxidation ponds. Compared with the activated sludge tank, it has small volume, strong adaptability to water quality, good performance of shock resistance load, stable water quality and no sludge expansion. A new type of elastic solid filler is used in the pool, which has a large specific surface area, and the microorganism is easy to hang and defilm. Under the same load of organic matter, the removal rate of organic matter is high, which can improve the solubility of oxygen in the air in water.
ï¼?/FONT>3ï¼?/FONT>The biological contact oxidation method is adopted in the biochemical tank. The volume load of the fillers is relatively low, and the microorganism is at its own oxidation stage and produces less sludge. It only takes more than three months (90 days) to discharge mud (which can be pumped by the manure cart or transported by dehydrated mud cake).
ï¼?/FONT>4ï¼?/FONT>The deodorization method of the integrated underground sewage treatment equipment is not only the conventional high altitude exhaust, but also the soil deodorization measures.
ï¼?/FONT>5ï¼?/FONT>The whole equipment processing system is equipped with fully automatic electrical control system and equipment failure alarm system, which is safe and reliable in operation. Generally, no special person is required to manage the equipment, but only timely maintenance and maintenance of the equipment.
四�/FONT>Common Trouble Shooting
ï¼?/FONT>1ï¼?/FONT>No normal discharge of water
Contact oxidation tank, sedimentation tank, disinfection tank, sludge tank, whether the connecting pipe is blocked (the plugging material is usually a detached biofilm and damaged elastic solid filler).
ï¼?/FONT>2ï¼?/FONT>The aeration of contact oxidation pond is not even
Check whether the outlet valve of aerator is in normal position and whether the aerator head is damaged.
ï¼?/FONT>3ï¼?/FONT>The effect of biofilm bonding was not obvious
Check whether the aeration of the contact oxidation tank is even, and whether the sludge of the secondary sedimentation tank is pumped to the tank; If the above situation is normal, add proper amount of nutrition (sugar, urea, etc.) to the pool.
ï¼?/FONT>4ï¼?/FONT>The effluent water quality is not up to standard
Too much water; The aeration in the contact oxidation pond is not even or the operation is stopped for a long time (at this time, the biofilm must be recultured). Excessive sludge in the sedimentation tank (sludge must be thoroughly removed); Disinfecting equipment is out of service and water is not disinfected for a long time.
ï¼?/FONT>5ï¼?/FONT>Automatic control fails
Check the power supply of automatic control cabinet is normal; Check whether the supporting hoisting pump and aerator are damaged (the current may be too large at this time, and the circuit breaker will be automatically disconnected).
五�/FONT>Range of Application
ï¼?/FONT>1ï¼?/FONT>Hotels, food processing restaurants, nursing homes, hospitals, slaughterhouses, office buildings;
ï¼?/FONT>2ï¼?/FONT>Residential areas, villages and market towns;
ï¼?/FONT>3ï¼?/FONT>Stations, airports and seaports;
ï¼?/FONT>4ï¼?/FONT>Factories, mines, troops, tourist spots, scenic spots, etc.
å…ã€?/FONT>There are many kinds of buried sewage treatment technologies, and the most prominent advantages are provided that the effluent reaches the standard:
ï¼?/FONT>1ï¼?/FONT>The equipment is buried under the surface, which does not occupy the land area and does not hinder the use above the surface. It can be greened and the environment is beautiful.
ï¼?/FONT>2ï¼?/FONT>The whole equipment generally does not need to be managed exclusively.
ï¼?/FONT>3ï¼?/FONT>Can reduce floor area, do not hinder ground use.
七�/FONT>Scope of application of integrated sewage treatment equipment of buried type
ï¼?/FONT>1ï¼?/FONT>Treated water amount: the standard type is 1.0 ~ 80.0(m3/h), which needs to be designed separately if it is greater than 80.0(m3/h)
ï¼?/FONT>2ï¼?/FONT>Original water concentration: BOD5: standard type is no more than 250mg/L, enhanced type is no more than 400mg/L, over 400mg/L need to be designed separately.
ï¼?/FONT>3ï¼?/FONT>The equipment is mainly applicable to residential areas, hotels, wharves, airports, shopping malls, nursing homes, schools, factories, mines and other industries of domestic sewage and similar industrial wastewater.
Our Clients
CONTACT US
+86-532-83232098
E-Mail:sales01@qdtent.com
addr:No. 1, Minan Road, Jiaoxi Industrial Park, Jiaozhou, Shandong, China
