Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of employing biological chemistry to combine with physical chemistry, the water quality of reuse water is good, and the cost sewage that utilizes low and handled easily is produced the technology of reuse water; Another object of the present invention provides employed specific equipment in this technology of producing reuse water.
Purpose of the present invention can realize by following technical measures:
Earlier sewage is sent in the enzymatic living beings filtration unit, carry out that gas-liquid contacts and residual pollutent in the degradation water through enzymatic lithotroph filter material layer and the air that blasts of device bottom from top to bottom, residual gas is discharged by top, water is discharged by the bottom and is entered by last floating filtration unit bottom, through enzymatic lithotroph filter material layer, the suspended substance that is trapped is stayed the bottom row for the treatment of from bottom to top, and water is discharged through top, add the ozone sterilization sterilization, get reuse water.
Purpose of the present invention also can realize by following technical measures:
The bottom of described enzymatic lithotroph filter material layer has or not the machine filter sarking, and this inorganic filtrate is the inorganic filtrate of routine techniques; The enzymatic lithotroph filtrate of described enzymatic lithotroph filter material layer is that the density of crushing and screening is 1 ± 0.1g/cm
3With particle diameter be the particle of 1~7mm; Inorganic filtrate in the described enzymatic lithotroph filtrate device is that the density of crushing and screening is 1~10g/cm
3With particle diameter be the particle of 10~15mm; The described inorganic filtrate density that goes up in the floating filtration unit is 0.1~1.0g/cm
3With particle diameter be the spheroidal particle of 10~15mm.
Another object of the present invention can realize by following technical measures:
One of employed specific equipment is " an enzymatic living beings filtration unit " in the technology of producing reuse water of the present invention, the top of the cylindrical shell of this device is connected with the vapor pipe that is provided with air inlet port that stretches into the intravital sewage water inlet pipe of tube and be positioned at its below, the cylindrical shell bottom is connected with stretches into the intravital escape pipe that is provided with production well that is provided with the water shoot of prosopyle and is positioned at its top of tube, and the cylindrical shell bottom is connected with and is positioned at the following sieve plate that the escape pipe top is used to put the inorganic filtrate of doing bed course.This installs technical measures further is to be connected with upper sieve plate above the enzymatic lithotroph filtrate at cylindrical shell middle part; The water outlet of sewage water inlet pipe has filter outward.
Two of employed specific equipment is " going up the floating filtration unit " in the technology of producing reuse water of the present invention, the cylindrical shell bottom of this device is connected with the water inlet pipe that is provided with posticum and is positioned at the following sieve plate that the water inlet pipe top is used to put the inorganic filtrate of doing bed course, cylindrical shell top is connected with rising pipe, be connected with aqueduct that rising pipe is communicated with and strain water pipe, strain between the other end of water pipe and cylindrical shell and be connected with regulator of level.This installs further, and technical measures are aqueducts and strain water pipe formation " U " shape; Cylindrical shell top is connected with the upper sieve plate that is positioned at the rising pipe below; Mud discharging mouth on the cylindrical shell of following sieve plate top is provided with filtrate interception net.
The present invention utilizes geographical formula sewage disposal device to handle sanitary sewage or industrial organic waste water, through preliminary treatment, for example: after preliminary treatment reaches the one-level or secondary standard of GB18918-2002 or GB8978-96, handle with the enzymatic living beings filtration unit again, the enzymatic lithotroph filtrate of particle diameter 1-7mm is housed in this device, as the disclosed granular enzyme-catalyzed packing of ZL97107306.6, contain the microorganism growth accelerant C o of 20 μ g/g
2+, having the active 1.0mg/L that is, filler is main aggregate with 75% clay, is the fibula material with weight percent 25% mud coal, and to add pore-forming material and toughener-its weight proportion of containing aggregate gross weight 8% be Fe
2O
3: wood chip: Na salt or K salt=4: 8: 1, through fragmentation or plasticizing, moulding, natural mummification, fired again to give birth to temperature 6 hours to firing temperature be 1050 ℃, constant temperature 30 minutes, airtight being cooled to below 400 ℃, the blow-on rapid cooling, and through the fragmentation of milling, the screening form.The density of the enzymatic living beings that the present invention adopts is 1g/cm
3Air blast is for the required oxygen of microorganism growth in device, filtrate is suspended state simultaneously, slowly move up and down, improving mass-transfer efficiency can improve biochemical treatment efficient on the one hand, is because the mutual collision friction of filtrate is convenient to the aged biofilm detachment in addition, promoting the growth of true tumor film, also is the importance that improves the biochemical treatment effect.As required, enzymatic living beings filtration unit and last floating filtration unit comprise a cover at least.The enzymatic living beings filtration unit is provided with water inlet pipe, water shoot, inlet pipe and backwash tube.Hydraulics is to go out under enterprising, and air goes out on advancing under being, adds the microbial film of growing on the filtrate, and the gas, liquid, solid three-phase rationally contacts, and helps airborne oxygen and returns in liquid phase and shift, and promptly helps the microbial growth breeding; Help BOD in the sewage
5, COD
CrShift in microbial film Deng pollution substance, also just help microorganism it is degraded, also help degraded product CO simultaneously
2, N
2And H
2O etc. are to the film external diffusion, thereby make total system realize efficient energy-saving, and the pollutent of degrade residual effectively improves the quality of reuse water water quality.Connect the floating filtration unit behind the enzymatic living beings filtration unit, the tamped density of this filtration unit is 0.1~1.0g/cm
3Inorganic filtrate.It is provided with water inlet pipe (inlet pipe of holding concurrently during back flushing), rising pipe, backwash tube, shore pipe and sieve plate, filter, can regulates the isorrheic stainless steel screen of straining hydrophone and interception filtrate.Hydraulics goes out on advancing under being, matches and realizes water purification by gravity, no longer promotes consumption of power.Because the big surface irregularity of specific surface area helps holding back the suspended substance in the sewage, biological filter filtrate is the inorganic filtrate of sintering, and it has the promoter action of microbial reproduction growth, and its density is 1.0 ± 0.1g/cm
3Filtrate is suspension, suspended substance in the sewage is trapped within filtrate bottom, when cycle of operation finished, the space that promptly holds suspended substance promptly stopped into water at full capacity the time, open the spoil disposal valve, utilize run by gravity that mud is got rid of, the smooth and easy convenience of spoil disposal is saved power than the sand filter water recoil spoil disposal of routine.When a cycle of operation finishes to need back flushing, put into tap water (or reuse water) from top and blast air agitation, the mud on the filtrate is washed again get rid of by shore pipe.This inorganic filtrate is difficult for stopping up than inexpensive not conglomerations of organic filtrate such as fine microballoons, and repercussion effect is good, long service life.It is bigger than traditional filter material specific surfaces such as quartz sand, diatomite, and density can realize the floating filtration process less than 1, is difficult for stopping up, and backwash water is few, does not also need pressure, by air agitation the mud that adheres on the filtrate is come off, and backwash effect is good.Described enzymatic living beings filtration unit is provided with the sewage lift technique, and this equipment can be used submersible pump.
Remove the water of suspended substance (mainly being the aging microbial film that comes off in the biological filter) and use the ozonization sterilization at last, guarantee in the reuse water that bacterium index such as excrement colibacillus group number is up to standard.Concrete measure is to be provided with ozone on the pipeline outside last floating filtration unit water outlet to add inlet, ozone (O
3) be a kind of efficient germicide, ozone (O
3) preparation adopt routine techniques, with electrical actuation power, air is a raw material, on-site preparation does not consume industrial chemicals.It not only has very strong sterilizing ability, guarantees sterilization effect, also has good decolorization simultaneously, and water outlet is infused clearly.
The present invention has following actively useful effect:
1, this reparation technology energy consumption is low, except that sterilization with need not any medicament the ozone, treatment effect is stable, cost is low, the whole system compact equipment, floor space is little, no stink, noiselessness can not cause secondary pollution, energy consumption is low, working cost is low.
2, not limited by sewage quantity, maneuverability, changeable, also can overlap more and be used in combination.Therefore the place of large-scale wastewater treatment plant is built in inconvenience such as the little wide city resident sub-district of the amount of being suitable for, the combination area of city and country, sanatorium, hospital, office, school, office building, hotel, restaurant, villa district, tourist attractions, samll cities and towns, small towns, be convenient to simultaneously the reuse water reuse nearby handled again, shorten the reuse pipeline, save construction cost.Reuse water can be back to greening, flushes the toilet, Gongjian, cleaning road, towards car, landscape water.
3, processing rate is imitated height, can improve the rate of transform of oxygen and the resultant co of contaminant degradation
2, N
2Transform with the migration of water etc., effectively residual pollutent in the degradation water.
4, this cover system not only can be handled sanitary sewage, also can handle food, beverage waste water, swimming-pool water and some organic industrial sewage etc., and in addition reuse.
Embodiment:
Produce the technology of reuse water: sewage is sent into be equipped with enzymatic lithotroph filtrate and inorganic filtrate is done in the enzymatic living beings filtration unit of bed course earlier, enzymatic lithotroph filtrate is that the density of crushing and screening is 1g/cm
3With particle diameter be the particle of 5mm, inorganic filtrate is that the density of crushing and screening is 6g/cm
3With particle diameter be the particle of 12mm; Carry out that gas-liquid contacts and residual pollutent in the degradation water through enzymatic lithotroph filter material layer and the air that blasts of device bottom from top to bottom, residual gas is discharged by top, water is discharged by the bottom and is entered by last floating filtration unit bottom, through enzymatic lithotroph filter material layer, enzymatic lithotroph filtrate is that the density of crushing and screening is 1.1g/cm from bottom to top
3With particle diameter be the particle of 4mm, inorganic filtrate is that the density of crushing and screening is 0.5g/cm
3With particle diameter be the spheroidal particle of 10mm; The suspended substance that is trapped is stayed the bottom row for the treatment of, water is discharged through top, adds the ozone sterilization sterilization, gets reuse water.
The enzymatic living beings filtration unit: the top of cylindrical shell 5 is connected with the vapor pipe that is provided with a plurality of air inlet ports 11 10 that stretches into the intravital sewage water inlet pipe 9 of tube and be positioned at its below, the water outlet of sewage water inlet pipe 9 has Stainless Steel Wire filter 8 outward, cylindrical shell 5 bottoms are connected with stretches into the intravital escape pipe that is provided with a plurality of production wells 17 16 that is provided with the water shoot 3 of a plurality of prosopyles 2 and is positioned at its top of tube, cylindrical shell 5 bottoms are connected with the following sieve plate 14 that is positioned at escape pipe 16 tops, have or not machine filter sarking 4 successively on the following sieve plate 14, enzymatic lithotroph filter material layer 6, upper sieve plate 13, the top of the enzymatic lithotroph filtrate at cylindrical shell 5 middle parts is connected with upper sieve plate 13, sewage water inlet pipe 9, vapor pipe 10, escape pipe 16, the inner termination of water shoot 3 is connected with end socket 7 successively respectively, end socket 12, end socket 15, end socket 1.
Last floating filtration unit: cylindrical shell 18 bottoms are connected with the water inlet pipe 22 that is provided with a plurality of posticums 28 and are positioned at the following sieve plate 27 of water inlet pipe 22 tops, have or not machine filter sarking 29 successively on the following sieve plate 27, enzymatic lithotroph filter material layer 30, upper sieve plate 26, cylindrical shell 18 tops are connected with rising pipe 24, be connected with aqueduct 25 that rising pipe 24 is communicated with and strain water pipe 19, the other end and 18 of the cylindrical shells of straining water pipe 19 are connected with regulator of level 23, the cylindrical shell 18 of straining the top of water pipe 19 is provided with overflow weir 21, aqueduct 25 with strain water pipe 19 and constitute " U " shapes, cylindrical shell 18 tops are connected with the upper sieve plate 26 that is positioned at rising pipe 24 belows, and the mud discharging mouth on the cylindrical shell 18 of following sieve plate 27 tops is provided with the filtrate interception net 20 that the aperture is 0.8mm.