CN206486338U - A kind of hospital wastewater integrated treatment unit of low environmental impact - Google Patents

Abstract

A kind of hospital wastewater integrated treatment unit of low environmental impact, it is made up of membrane bioreactor, tail gas biofilter and ozonateur, it is characterized in that the sewage disposal of hospital device, the main body of wastewater treatment is membrane bioreactor, air blower mud mixed liquid into membrane bioreactor is supplied, the water outlet of pumping negative pressure simultaneously passes through ozonization, and tail gas realizes deodorizing sterilizing by biofiltration and ozonization.This kind of new integrated treatment unit, effluent quality is good, and sludge yield is few, and tail gas deodorization and disinfection effectively reduces ambient influnence.

Description

A kind of hospital wastewater integrated treatment unit of low environmental impact

Technical field

The utility model is related to a kind of sewage disposal device, more particularly, to a kind of sewage disposal of hospital process equipment.

Background technology

Hospital wastewater be mainly that medical institutions produce during operation it is various it is poisonous and harmful have bacterium waste water, mainly by examining The waste discharge such as room, ward, pathological anatomy room, radiation chamber, X pieces photo studio and operating room is treated to constitute, also comprising a small amount of office, The waste water such as washing.Contain the poisonous and harmful substances such as acid, alkali, suspended solid, BOD, COD and vegetable and animals oils in hospital wastewater.It is different The sewage pollution factor that section office of department produce is different, such as heavy metal wastewater thereby, oily waste water, developing and printing waste water, radioactive wastewater Deng, and heterogeneity medical institutions produce sewage be also very different.Waste water quality is similar to sanitary sewage, but compared with one As sanitary sewage emission behaviour it is complicated, while medical institutions' sewage is by the micro- life of the pathogenicities such as excrement, infective bacterial and virus Thing pollutes, and with infectiousness, can induce an illness or damage, with higher potential safety hazard.Its typical following table of water quality It is shown.

In view of the contaminative of hospital wastewater, Environmental Protection in China department always attaches great importance to.《Medical institutions' water pollution discharge mark It is accurate》The pollutants such as waste gas, the sludge produced to medical institutions' sewage, Sewage Disposal propose the requirement controlled comprehensively.At present Routine hospital waste water typically adds cholorination or secondary biochemical plus cholorination using one-level materialization.Existing sewage disposal of hospital Technology exists following not enough：(1) sludge yield is big, and the micro- life of a large amount of cause of diseases is contained in the excess sludge that sewage disposal of hospital is produced Thing, such as deals with improperly as pollution source.(2) tail gas is not dealt carefully with, and containing a large amount of harmful aerosols, is especially exhaled Inhale road germ environmental risk bigger.Patent ZL200820225165.9 " specialized intelligent small hospital wastewater treatment facility ", ZL201320406178.7 " sewage disposal of hospital process equipment " discloses some improved methods, but for sludge and foul smell The secondary pollutions such as the processing control change without principle.

Utility model content

For the technical deficiency of Hospitals at Present wastewater treatment, the utility model provides a kind of new integrated treatment dress Put, effluent quality is good, and sludge yield is few, tail gas deodorization and disinfection effectively reduces ambient influnence.

The technical solution adopted in the utility model is：

The hospital wastewater integrated treatment unit of a kind of low environmental impact, by membrane bioreactor, tail gas biofilter With ozonateur composition, it is characterised in that be the sewage disposal of hospital device, the main body of wastewater treatment is membrane biological reaction Device, air blower mud mixed liquid into membrane bioreactor is supplied, and the water outlet of pumping negative pressure simultaneously passes through ozonization, and tail gas passes through Biofiltration and ozone contactor realize deodorizing sterilizing.

Membrane bioreactor sludge concentration is high, and sludge loading is low, by the optimal design-aside of technological parameter, can be greatly reduced Sludge yield, realizes that half a year once, greatly reduced the secondary pollution risk of sludge to 1 year discharge excess sludge.

The membrane bioreactor, it is characterised in that realize that biochemical aeration, film wash away and mud mixed liquid using 1 Fans The function of plug-flow, sludge concentration 6-10g/L；Conventional biochemical reactor equipment is more, containing substantial amounts of agitator, blower fan, water pump, Sludge reflux pump etc., the system integration is relatively low, and management difficulty is big.

The tail gas biofilter, it is characterised in that the empty bed residence time is in 10-20s；Tail gas by biofilter, The foul smell composition such as ammonia, organic sulfur for containing in tail gas is degraded, and residual pathogen is killed by ozone, greatly reduces the two of tail gas Secondary pollution.

The beneficial effects of the utility model are：

(1) effluent quality is good：Membrane bioreactor is integrated with the advantage of biochemical and UF membrane, and bacterium and virus are trapped within Within reactor, go out aqueous suspension almost nil, it is possible to achieve water reuse (treatment is utilized；

(2) sludge yield is few：Membrane bioreactor sludge concentration is high, and sludge loading is low, is set by the optimization of technological parameter Put, sludge yield can be greatly reduced, realize that half a year once, greatly reduced pathogen and pass through dirt to 1 year discharge excess sludge The probability of mud discharge diffusion；

(3) tail gas deodorizing sterilizing：Tail gas is by biofilter, the foul smell composition quilt such as ammonia, organic sulfur contained in tail gas Degraded, residual pathogen is killed by ozone, greatly reduces the secondary pollution of tail gas.

Brief description of the drawings

In order that present disclosure is more likely to be clearly understood, specific embodiment and combination below according to the present invention Accompanying drawing, the present invention is further detailed explanation, wherein

Fig. 1 is process chart

The integrated apparatus structure schematic diagrams of Fig. 2

(1) blower fan；(2) water pump；(3) ozone contactor；(4) film group device

Embodiment

There is bed 200 in certain hospital, the average side of day sewage yield 100, using the integrated sewage disposal of hospital device, gives up Water passes through septic tank regulating reservoir, and integrated apparatus is lifted into through pump.9.0 meters of integrated apparatus length, it is high 2.7 meters, it is wide 2.3 meters, It is divided into biochemical zone and battery limits.The dynamic equipment of biochemical zone only has a Fans, the specified tolerance of blower fan be 0.4 side/point.Waste water passes through Submersible sewage pump enters membrane bioreactor, is decomposed by the effect of microorganism, and blower fan is supplied into reactor.Ozone machine produces high Concentration of ozone, ozone oxidation performance is strong, is a kind of efficient disinfectant.Suction pump is passed through in water outlet, then real by ozone contactor Now sterilize.Tail gas first passes around biofilter, and the foul smell composition such as its ammonia contained, organic sulfur is degraded, and tail gas is again by smelly Oxygen contactor, residual pathogen is killed by ozone.

Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or Among changing still in the protection domain of the invention.

Claims (4)

1. a kind of hospital wastewater integrated treatment unit of low environmental impact, by membrane bioreactor, tail gas biofilter and Ozonateur is constituted, it is characterised in that the sewage disposal of hospital device, and the main body of wastewater treatment is membrane bioreactor, drum Blower fan mud mixed liquid into membrane bioreactor is supplied, and the water outlet of pumping negative pressure simultaneously passes through ozonization, and tail gas is by biological Filtering and ozonization realize deodorizing sterilizing.

2. a kind of hospital wastewater integrated treatment unit of low environmental impact as claimed in claim 1, it is characterised in that the film Bioreactor, realizes that biochemical aeration, film wash away the function with mud mixed liquid plug-flow, sludge concentration 6- using 1 Fans 10g/L。

3. a kind of hospital wastewater integrated treatment unit of low environmental impact as claimed in claim 1, it is characterised in that the tail The gas biofilter sky bed residence time is in 10-20s.

4. the hospital wastewater integrated treatment unit of a kind of low environmental impact as claimed in claim 1, it is characterised in that described smelly Oxygen sterilizer is mainly made up of ozone machine and ozone contactor.