A kind of marine sewage treatment system
technical field:
The utility model belongs to the waste disposal plant field, is specifically related to a kind of marine sewage treatment system.
background technology:
Aerobic biological fluid-bed wastewater processing technology is to take biomembrance process as basis, draws the fluidization technology in chemical industry operation and a kind of efficient waste water treatment process that forms, is the important breakthrough of biomembrance process.It usings the particulate materials such as sand, haydite, gac and rubber as carrier, and the carrier particle of fluidisation has very large specific surface area, generally can reach 2000-3000 m
2/ m
3.Biology inhabits carrier surface, forms the biomone covered by very thin microbial film, and biosolids concentration can reach 5-10 times of conventional activated sludge process.The waste water that bio-carrier is risen in bed and Air Fluidized, not only can prevent that the microbial film in biological filter from stopping up, and, due to the close contact between bio-carrier, waste water, air three, can greatly improve the mass transfer situation, organic matter removal speed is speeded, and required reactor volume reduces.
Circulating three-phase biologic fluidized-bed (the comprising inside and outside circulating fluid bed) grown up on three-phase biologic fluidized-bed basis in tradition within having kept reactor good mixing property, rate of mass transfer is fast, sludge concentration is large and the organic loading advantages of higher outside, also have can control biomembranous hypertrophy, the carrier current vector is few, the carrier fluidizing performance is good, oxygen transfer efficiency is high, be easy to the characteristics such as amplification.With external circulation fluidized bed, compare, Internal Circulating Fluidized Bed is due to the transitional pipe segment of having cancelled between He Jiangliu district, up-flow district, therefore resistance to flow is little, the initial fluidisation of reactor also is easier to, thereby has reduced the complicacy of working cost and operation operation.China carries out the research of biochemical process and physico-chemical process marine sewage treatment system since late 1970s, in the later stage nineties, from the U.S., introduced the electrolytic process treatment unit.Traditional biochemical process and physico-chemical process fluctuation of service, complicated operation; The electrolytic process investment cost is large, and must maintain certain brine concentration in sewage.
The utility model discloses a kind of marine sewage treatment system, adopt inner loop fluidized bed reactor and electrochemical disinfection technology to research and develop SBR formula fluidized-bed domestic sewage treatment equipment used for boat.
The utility model content
The utility model discloses a kind of marine sewage treatment system, this device adopts order to criticize method SBR sewage treatment process and processes, this process using intermittent aeration mode is moved, have operation flexibly, effect stability, anti impulsion load, effectively prevent the advantages such as sludge bulking, good denitrogenation and dephosphorization effect, good effect of separating solid from liquid.
For realizing the utility model utility model purpose, adopt following technical scheme:
1. a marine sewage treatment system, is characterized in that mainly comprising by equalizing tank, SBR biological fluidized bed, blower fan and electrochemical disinfection device forming; Wherein, after the sewage collecting cabinet connects equalizing tank, then connect the water-in of SBR biological fluidized bed by pump, the SBR biological fluidized bed also is connected with Aeration fan; After the water outlet of SBR biological fluidized bed connects the electrochemical disinfection device, then connect pump for draining; Sanitary sewage also directly connects wet-pit in addition.
2. the described equalizing tank of step 1 is mainly regulated water quality, the water yield of sewage, and volume adjusted, depending on the ununiformity of water, is generally got the average water yield of 5-9 h, is provided with preaeration in pond. can avoid anerobic sowage fermentation in pond simultaneously.
The described SBR biological fluidized-bed reactor of step 1 be shaped as cuboid, 3 dividing plates are inside arranged, central dividing plate is divided into 2 ciculation fluidized bed unit by reactor, another 2 dividing plates are divided into each unit He Jiangliu district, up-flow district.Several holes are arranged on central dividing plate, the water of 2 unit when draining and water inlet can be flowed mutually.Automatic stream Jiang Liu district after the up-flow district rises to certain altitude by bottom perforated pipe aeration band mobile carrier, Jiang Liu district inner bottom part has one to the up-flow district, to tilt 65
.plate, make the carrier that enters the Jiang Liu district automatically slip into the up-flow district, and constantly reciprocal this process makes it keep fluidized.
4. the described blower fan of step 1 is that two Aeration fans act on simultaneously.
5. the shape of the described electrochemical disinfection device of step 1 is also cuboid, and 3 dividing plates are inside arranged, and sterilizer is divided into to 4 lattice.Due to when sterilization energising battery lead plate produce gas and make the oriented mobile lift of water body, circulate and improved the general effect of sterilization so also form in sterilizer.Wherein, 2 lattice that battery lead plate is arranged are the up-flow district, all the other 2 lattice Wei Jiangliu districts.
The accompanying drawing explanation
Fig. 1 the utility model SBR formula fluidized-bed domestic sewage treatment equipment used for boat schematic flow sheet;
Sewage collecting cabinet 1 in Fig. 1, equalizing tank 2, pump 3,8,9, SBR biological fluidized bed 4, electrochemical disinfection device 5, Aeration fan 6,7.
Fig. 2 SBR biological fluidized-bed reactor structural representation.
Fig. 3 electrochemical disinfection device structural representation.
Embodiment
In conjunction with Fig. 1, Fig. 2 and Fig. 3, be further described the utility model by embodiment.
Embodiment 1
The present embodiment explanation the utility model SBR formula fluidized-bed domestic sewage treatment equipment used for boat flow process, the FB(flow block) that Fig. 1 is SBR formula fluidized-bed domestic sewage treatment equipment used for boat.Marine domestic sewage is mainly food and drink water and the lavatory draining of washing one's face and rinsing one's mouth, because the sanitary sewage water is closer apart from sewage disposal device, therefore at first sewage collect 1 through the sewage collecting cabinet, then enter equalizing tank 2, stay for some time, be delivered to SBR biological fluidized-bed reactor 4 with sump pump 3 again after regulating pondage and water quality and carry out Air Exposure by Aeration fan 6 and 7, the sewage disposal experimental installation is usingd the time as controlling the parameter intermittent operation, and sewage treatment capacity is 3~6 m
3/ d, processed the sanitary sewage that produce every day.Aeration is precipitated after finishing, the sewage disposal experimental installation respectively has a mud discharging mouth respectively below 2 cover organism fluidization system Jiang Liu districts, the settling ratio of mud is 0.2~0.5, equipment can be discharged mud after operation for some time, and the mud after discharge is delivered on request appointed place on the bank and focused on.Supernatant liquor drains into electrochemical disinfection device 5, after sterilization, by pump 8 and 9, directly effluxes.
Embodiment 2
The structure of the present embodiment explanation SBR biological fluidized-bed reactor, the SBR biological fluidized-bed reactor be shaped as cuboid, 3 dividing plates are inside arranged, central dividing plate is divided into 2 ciculation fluidized bed unit by reactor, another 2 dividing plates are divided into each unit He Jiangliu district, up-flow district, as shown in Figure 2.Several holes are arranged on central dividing plate, the water of 2 unit when draining and water inlet can be flowed mutually.Automatic stream Jiang Liu district after the up-flow district rises to certain altitude by bottom perforated pipe aeration band mobile carrier, Jiang Liu district inner bottom part has one to the up-flow district, to tilt 65
.plate, make the carrier that enters the Jiang Liu district automatically slip into the up-flow district, and constantly reciprocal this process makes it keep fluidized.
Embodiment 3
The structure of the present embodiment explanation electrochemical disinfection device, the shape of electrochemical disinfection device is also cuboid (Fig. 3), and 3 dividing plates are inside arranged, and sterilizer is divided into to 4 lattice.Due to when sterilization energising battery lead plate produce gas and make the oriented mobile lift of water body, circulate and improved the general effect of sterilization so also form in sterilizer.Wherein, 2 lattice that battery lead plate is arranged are the up-flow district, all the other 2 lattice Wei Jiangliu districts.