CN101565229A

CN101565229A - Bio-contact oxidation and micro-flocculation integrated waste water treating device

Info

Publication number: CN101565229A
Application number: CNA2008100934171A
Authority: CN
Inventors: 曲奕
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-21
Filing date: 2008-04-21
Publication date: 2009-10-28

Abstract

The invention relates to a bio-contact oxidation and micro-flocculation integrated waste water treating device, in particular to a bio-contact oxidation and micro-flocculation integrated energy-saving and emission-reducing technology used for treating hospital waste water. The device integrates bio-contact oxidation, a septic tank, a grille and micro-flocculation, and strengthens the pretreatment before the bio-treatment, thereby reducing the subsequent processing difficulty and decreasing the running cost. A high-efficiency micro-flocculation water treatment process is adopted by the integrated waste water treating device for carrying out the depth treatment to the hospital waste water so that the waste water discharge reaches the standard, and the regenerated water is utilized. A ClO2 generator is selected for disinfection, therefore the disinfection effect is good, the automation degree is higher, and a specific person is not required to charge the management. The integrated waste water treating device adopts a sludge reduction technology, reduces the sludge treating cost, and further reduces the whole waste water treating cost, thereby having significant meaning.

Description

Bio-contact oxidation and micro-flocculation integrated waste water treating device

Technical field

The present invention relates to the bio-contact oxidation and micro-flocculation integrated energy-conserving and emission-cutting technology of a kind of bio-contact oxidation and micro-flocculation integrated waste water treating device, particularly a kind of Hospital Sewage Treatment.Be to utilize bio-contact oxidation and septic tank+grid+compound integration apparatus of little flocculation.This integration apparatus is strengthened pre-treatment before biochemical treatment, reduce the subsequent handling intractability, has reduced working cost.The efficient water technology of little flocculation is used for the advanced treatment of the hospital sewage of integrated equipment for wastewater treatment, makes sewage drainage standard up to standard and guarantee the recycling of reuse water; Select for use the ClO2 producer to carry out disinfection, sterilisation effect is good, and level of automation is higher, need not the personal management.Adopted the mud decrement technology, reduced the sludge treatment cost, thereby the running cost that has reduced entire sewage is significant.Hospital sewage is a kind of special sewage, composition is comparatively complicated, remove and to contain part contaminants of chemical origin (harm of chemical pollutant is external this research emphasis in several years), outside the ight soil in the sanitary sewage, the health cotton paper etc., also be mingled with dense blood, organize waste, medicine and washing composition etc.Wherein organism accounts for and pollutes total amount about 40%, mainly is pathogen contamination, as roundworm egg, hepatitis virus, tubercule bacillus, dysentery and other popular germs and other objectionable impuritiess.The sewage that produces of infectious hospital, tumour hospital and general hospital polyclinic particularly, its Pollutant levels height, harm are big.In the Hospital Sewage Treatment process, strict control pathogenic micro-organism seems particularly important with sewage discharge.The epidemic situation in Hong Kong " Amoy Garden " shows that fecal sewage also is that SARS infects the approach of can not ignore.If not treated municipal water drain or the river course of just entering can serious environment pollution and harm humans health.Therefore, to revaluation and the construction of newly-built Hospital Sewage Treatment facility and the great attention that management is subjected to national departments concerned (Ministry of Construction, Environmental Protection Agency etc.) of original hospital sewage disposal system security.The pollution condition of hospital sewage and the type of hospital, scale are relevant.Hospital Sewage Treatment generally includes one-level and handles and second-stage treatment.In general, enter municipal water drain, only carry out one-level usually and handle if handle the back water outlet; Directly enter the river course if handle the back water outlet, then need carry out one-level and handle and second-stage treatment; To the tight area of emission standard,, need carry out the dephosphorization denitrogenation tertiary treatment for preventing the eutrophication of water body.To acid waste water, wash special hospital sewages such as phase waste water, radioactive dirty water, should carry out strict collection and processing.

Background technology

The object of the present invention is to provide a kind of hospital sewage processing process that is particularly suitable for hospital of health clinics in towns and townships---bio-contact oxidation and micro-flocculation integrated equipment.This equipment can carry out the advanced treatment and the recycle of hospital sewage, alleviates the contradiction of area, small towns water supply gets.Which kind of mode hospital sewage processing process adopts, and should take all factors into consideration the source of sewage, the flow direction and local many-sided factors such as water supply situation of sewage.In addition, very important aspect of Hospital Sewage Treatment is exactly necessary disinfection, to kill various pathogenic micro-organisms.Substantially all there is open-and-shut waste disposal plant in the hospital of health clinics in towns and townships of China at present, but its construction level and management level mixed, treatment process is all based on cholorination, and the hospital of last secondary biochemical treatment is seldom.This shows; disinfecting of hospital sewage also rests on the comparison primary method; we should generalize original liquid chlorine sterilization method on the one hand; we will promote the better chlorine dioxide generating device engineering design plan (EDP) of sterilisation effect in some infectious hospital simultaneously. and the hospital sewage quantity discharged is big; carry out the cyclic regeneration comprehensive utilization after treatment; help reducing the quantity that hospital sewage enters municipal pipeline, reduce pollution, conserve water resource and environment protection.Key problem in technology of the present invention is Hospital Sewage Treatment, physical and chemical indexs such as total plate count, excrement colibacillus group number, potential of hydrogen, chlorine potassium sodium, suspension content will reach comprehensive cycling and reutilization standard in the water of processing back, and locate to set up the cyclic utilization system of handling the back reuse water at hospital sewage station, lesion, patient terminal, green land etc., guarantee the recycling of reuse water.Sewage emissions after the processing and set up to handle the recycle and the quick bio self-checking system of back reuse water, emission standard is up to standard and guarantee the recycling of reuse water.The sewage of handling after up to standard enters city planting ductwork or directly discharging.

Summary of the invention

Main points of the present invention are the recombining process of bio-contact oxidation+septic tank+grid+little flocculation is made integration apparatus.The engineering total installed capacity accessory following (/ quantity/total installed capacity power (kw)/service rating (kw)/day operation time (h)/day total power consumption (kwh)) that the present invention selects: sewage pump I (2/0.8/0.40/24/9.6); Rotary blower (1/0.55/0.55/24/13); Sludge reflux pump (1/0.40/0.40/1/0.40); Sewage pump II (2/1.1/0.55/24/13); Hold medicine device (1/0.55/0.55/0.2/0.11); CLO2 producer (1/0.5/0.05/4/1.2); Water outlet lift pump (2/0.5/0.25/24/6); Engineering total installation of generating capacity 4.40kW, the about 2.75kW of service rating, day total power consumption 43.31kWh, ton water power consumption 3.61kWh.Determine treatment scale 12m3/d, processing power is the integration apparatus of 0.5m3/h, and treatment scale 22m3/d, and processing power is integration apparatus and the 24 hours every days of the operation continuously of 0.92m3/h.Following CODCr≤the 450mg/L of design influent quality; BOD5200mg/L; PH=7.0～9.0; SS≤150mg/L; Chlorine residue≤5mg/L; Excrement colibacillus group=1000/L.

Design water outlet water quality standard reaches " medical pollutant emission standard " secondary discharge standard (DB37/596-2006), that is: CODCr≤40mg/L; BOD5≤10mg/L; PH=6.0～9.0; SS≤10mg/L; Chlorine residue 〉=5mg/L; Colibacillus of excrement≤50MPN/L.

Its integration apparatus of equipment establish altogether aerating regulation, aerobic, precipitate and 4 unit of sterilizing.Aerating regulation is provided with boring aeration pipe in the unit, realizes the complete homogenizing of water quality, the water yield therein, so that make the subsequent disposal unit be in the stabilizing treatment state.The equalizing tank water outlet enters aerobic unit, aerobic unit is established blast aeration system, increase the dissolved oxygen in the water, Degradation by biology, organic pollutant is degraded completely, the aerobic unit water outlet enters precipitation unit, and the microbial film that will come off is precipitated removal, and precipitation unit water outlet gravity flow enters sterilizating area; In sterilizating area, utilize the strong oxidizing property of dioxide peroxide to reach the sterilization and disinfection purpose.Water outlet behind sterilization can reach the each department requirement, final qualified discharge.Septic tank+grid+little flocculation is first, the aftertreatment technology of auxiliary integration apparatus.Form the bio-contact oxidation and micro-flocculation integrated energy-conserving and emission-cutting technology of a whole set of cities and towns hospital sewage, the process combination compact and reasonable, Elementary Function is clear and definite; Stable, the anti impulsion load ability is strong; Level of automation is higher, and operational administrative is easy, and labour intensity is little.

Integration apparatus is to be core processing technology with the catalytic oxidation, establish aerobic unit and precipitation unit in it, aerobic unit is established blast aeration system, increase the dissolved oxygen in the water, by the Degradation of biology, organic pollutant is degraded completely, the aerobic unit water outlet enters precipitation unit, the microbial film that will come off is removed, precipitation unit water outlet qualified discharge.Precipitating sludge is back to septic tank by return-flow system, realizes the sludge digestion decrement, and part mud can be used as seed sludge and enters equalizing tank, contact-oxidation pool with sewage, and excess sludge is regularly cleared to the environmental administration appointed place by the environmental sanitation car and handled.

Integration apparatus is because its inside also is provided with biologic packing material, and it has all advantages of contact oxidation method: sludge yield is few, does not produce sludge bulking, and good treatment effect is arranged; Do not need mud to reflux, so easier maintenance management; Remaining a small amount of mud is back to septic tank, thereby accomplishes the zero release of mud.Integration apparatus will precipitate part and be integrated with aerobic part, have the advantage of saving the soil; Because it links to each other aerobic, precipitation part, save the pipe section consumption, and operation control is more simple; Because integration apparatus only needs the making equipment basis, so it also has easy construction, advantage simple, that the duration is short is installed.

Little flocculation process is a kind of coagulating, precipitation are held back and concentrated on the efficient water technology that the inter-sync of same filter post is finished.This process application by the adding of flocculation agent, has the function of further removal SS and portion C ODcr in the advanced treatment of hospital sewage, SS, CODcr clearance are further improved.That this technology has is simple to operate, compact construction, floor space is little, sludge quantity is few, stable effluent quality, turbidity, pathogenic agent microorganism, the organic effect of going all are better than advantages such as common process, be a kind of more economic and simple processing unit, be applicable to the advanced treatment that existing city, Hospital Sewage Treatment factory further increase water quality.

The preparation method of product of the present invention is:

1), determines sewage inlet water lifting pumps I, septic tank, the grid canal of treatment scale with different model; Rotary blower, sludge reflux pump, sewage pump II, appearance medicine device, little flocculation plant, CLO2 producer, water outlet lift pump are pressed the drawing assembling;

2) automatic control device is pressed the drawing assembling;

3) aerobic, the precipitation section of tubing with integration apparatus links to each other, and carries out the construction and installation debugging.

The present invention has the following advantages: (1) process combination compact and reasonable, and Elementary Function is clear and definite; Stable, the anti impulsion load ability is strong; Level of automation is higher, and operational administrative is easy, and labour intensity is little; (2) the efficient water technology of little flocculation is used for the advanced treatment of hospital sewage, makes sewage discharge standard up to standard, and guarantees that reuse water can reuse; (3) select for use the ClO2 producer to carry out disinfection, sterilisation effect is good, and level of automation is higher, need not the personal management.Adopt the mud decrement technology, reduced the sludge treatment cost, thereby reduced the running cost of entire sewage.(4) easy construction, simple, the duration weak point of installation.

Embodiment

The present invention is described in further detail below in conjunction with embodiment:

Assemble according to engineering total installed capacity accessory (/ quantity/total installed capacity power (kw)/service rating (kw)/day operation time (h)/day total power consumption (kwh)) and described step thereof that following table institute column data is selected:

One-level processing type:

Determine treatment scale 12m3/d, processing power is the integration apparatus of 0.5m3/h, the following CODCr≤450mg/L of design influent quality; BOD5200mg/L; PH=7.0～9.0; SS≤150mg/L; Chlorine residue≤5mg/L; Excrement colibacillus group=1000/L.The recombining process of bio-contact oxidation+septic tank+grid+little flocculation is made the engineering total installed capacity accessory following (/ quantity/total installed capacity power (kw)/service rating (kw)/day operation time (h)/day total power consumption (kwh)) that the integration apparatus invention is selected: sewage pump I (2/0.8/0.40/24/9.6); Rotary blower (1/0.55/0.55/24/13); Sludge reflux pump (1/0.40/0.40/1/0.40); Sewage pump II (2/1.1/0.55/24/13); Hold medicine device (1/0.55/0.55/0.2/0.11); CLO2 producer (1/0.5/0.05/4/1.2); Water outlet lift pump (2/0.5/0.25/24/6);

Engineering total installation of generating capacity 4.40kW, the about 2.75kW of service rating, day total power consumption 43.31kWh, ton water power consumption 3.61kWh.

The second-stage treatment type:

Determine treatment scale 22m3/d, processing power is integration apparatus and the 24 hours every days of the operation continuously of 0.92m3/h.Following CODCr≤the 450mg/L of design influent quality; BOD5200mg/L; PH=7.0～9.0; SS≤150mg/L; Chlorine residue≤5mg/L; Excrement colibacillus group=1000/L.The recombining process of bio-contact oxidation+septic tank+grid+little flocculation is made the engineering total installed capacity accessory following (/ quantity/total installed capacity power (kw)/service rating (kw)/day operation time (h)/day total power consumption (kwh)) that the integration apparatus invention is selected: sewage pump I (2/0.8/0.40/24/9.6); Rotary blower (1/0.55/0.55/24/13); Sludge reflux pump (1/0.40/0.40/1/0.40); Sewage pump II (2/1.1/0.55/24/13); Hold medicine device (1/0.55/0.55/0.2/0.11); CLO2 producer (1/0.5/0.05/4/1.2); Water outlet lift pump (2/0.5/0.25/24/6);

Claims

1, the present invention relates to a kind of bio-contact oxidation and micro-flocculation integrated waste water treating device, its main points are the recombining process of bio-contact oxidation+septic tank+grid+little flocculation is made integration apparatus; (/ quantity/total installed capacity power (kw)/service rating (kw)/day operation time (h)/day total power consumption (kwh)): the sewage pump I (2/0.8/0.40/24/9.6) that it is characterized in that having following engineering total installed capacity accessory; Rotary blower (1/0.55/0.55/24/13); Sludge reflux pump (1/0.40/0.40/1/0.40); Sewage pump II (2/1.1/0.55/24/13); Hold medicine device (1/0.55/0.55/0.2/0.11); CLO2 producer (1/0.5/0.05/4/1.2); Water outlet lift pump (2/0.5/0.25/24/6); Engineering total installation of generating capacity 4.40kW, the about 2.75kW of service rating, day total power consumption 43.31kWh, ton water power consumption 3.61kWh; Determine treatment scale 12m3/d, processing power is the integration apparatus of 0.5m3/h, and treatment scale 22m3/d, and processing power is integration apparatus and the 24 hours every days of the operation continuously of 0.92m3/h; Following CODCr≤the 450mg/L of design influent quality; BOD5200mg/L; PH=7.0～9.0; SS≤150mg/L; Chlorine residue≤5mg/L; Excrement colibacillus group=1000/L; Design water outlet water quality standard reaches " medical pollutant emission standard " secondary discharge standard (DB37/596-2006), that is: CODCr≤40mg/L; BOD5≤10mg/L; PH=6.0～9.0; SS≤10mg/L; Chlorine residue 〉=5mg/L; Colibacillus of excrement≤50MPN/L.

2, the preparation method of the described bio-contact oxidation and micro-flocculation integrated waste water treating device of a kind of claim 1 is characterized in that having following step:

2) automatic control device is pressed the drawing assembling;