Background technology
In the production process of pharmaceutical factory, all will consume a large amount of water every day, and then all can discharge a large amount of sewage every day.These sewage mostly contain in a large number human body and the poisonous and hazardous material of other animals and plants, if just thoroughly do not purify the contaminate environment that directly discharging can be serious, destroy ecologically, endanger the healthy of surrounding resident.Face the in short supply day by day of worldwide Freshwater resources, various circles of society are all vigorously advocating water saving, and pharmaceutical factory sewage is carried out utilizing after the purifying treatment again, and the recycle water resources then is a kind of positive, effective water-saving method.
But common pharmaceutical factory sewage disposal at present often needs to build large-scale wastewater treatment plant or waste disposal plant is realized, there are problems such as the sewage transmission quantity is big, treatment process is complicated, the place floor space is big, production cost height mostly in these facilities.But, therefore need a kind of simple in structure, installation and maintenance easy construction of exploitation, effective treatment system for setting up large-scale wastewater treatment plant or waste disposal plant obviously is unfavorable in small-scale pharmaceutical factory.
The utility model content
The purpose of this utility model provides a kind of pharmaceutical factory Sewage treatment systems in order to overcome the deficiencies in the prior art and defective, the good sewage processing effect of this pharmaceutical factory Sewage treatment systems, and low cost of manufacture, installation and maintenance is convenient, and floor space is little.
The purpose of this utility model is achieved through the following technical solutions: a kind of pharmaceutical factory Sewage treatment systems, it is characterized in that, mainly constitute by the settling tank that catchments, anaerobic biological treating pond, aerobic biochemical treating pond and the settling pond that link to each other by pipeline successively, the described settling tank that catchments, anaerobic biological treating pond, aerobic biochemical treating pond and settling pond are provided with the mud discharging mouth, and the mud discharging mouth all links to each other with sludge thickener.
Between the described settling tank that catchments, anaerobic biological treating pond, aerobic biochemical treating pond and the settling pond water pump is installed all.
The described settling tank front of catchmenting is provided with filtration unit.
In the described anaerobic biological treating pond whipping appts is installed.
Be connected to aerating apparatus on the described aerobic biochemical treating pond.
Described settling pond back is connected to water reservoir, and sterilizing unit is installed in the water reservoir, and between settling pond and the water reservoir water pump is installed also.
In sum, the beneficial effects of the utility model are: good sewage processing effect, and low cost of manufacture, installation and maintenance is convenient, and floor space is little.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
A kind of pharmaceutical factory Sewage treatment systems as shown in Figure 1 as can be known, this pharmaceutical factory Sewage treatment systems mainly is made of the settling tank 2 that catchments, anaerobic biological treating pond 3, aerobic biochemical treating pond 4, settling pond 5 and the water reservoir 11 that link to each other by pipeline 1 successively, and between the above-mentioned parts water pump 7 is installed all.
The above-mentioned settling tank 2 that catchments, anaerobic biological treating pond 3, aerobic biochemical treating pond 4, settling pond 5 and water reservoir 11 are provided with the mud discharging mouth, the mud discharging mouth all links to each other with sludge thickener 6, and the mud that produces in sewage treatment process can enter sludge thickener 6 by the mud discharging mouth and handle.
The front of the described settling tank 2 that catchments can be provided with filtration unit 8, be mainly used in the bigger solids of volume in the sewage of filtering pharmaceutical factory, this filtration unit 8 is made of several filtration modules, each filtration module all adopts the filter structure of standardized designs, can realize optimal separating efficiency by this standardized designs, when the sewage quantity of handling changes, can carry out the parallel connection of filtration module as required, to guarantee filter effect and resistance requirement, described filtration module can adopt filter structure, described filter screen is fixedly mounted on the screen frame, thereby arranged side by side installation of a plurality of screen frame formed effective filtering surface.
In the described anaerobic biological treating pond 3 whipping appts 9 is installed, thereby makes the anaerobic reaction of sewage more abundant; Be connected to aerating apparatus 10 on the described aerobic biochemical treating pond 4, be used for providing sewage, make aerobic reaction more abundant at the required oxygen of aerobic reaction.
In order to play better wastewater treatment efficiency, the sewage after the processing can more effectively be utilized by people, in the described water reservoir 11 sterilizing unit 12 is installed, be used for the clear water of water reservoir 11 is carried out sterilization and disinfection.
The technical process of whole pharmaceutical factory Sewage treatment systems is:
1) pre-treatment:
The sewage of discharging through the pharmaceutical factory at first by the bigger solids of filtration unit 8 filtering volumes, enters then in the settling tank 2 that catchments and carries out preliminary sedimentation, and the sewage behind preliminary sedimentation extracts anaerobic biological treating pond 3 by water pump 7 and is for further processing.
2) anaerobic biological is handled:
Pharmaceutical factory sewage is the treatment stage entering anaerobic biological after the pre-treatment, a large amount of anerobes is held back the solid matter in the sewage and colloidalmaterial rapidly under the anoxybiotic condition and adsorbs, the material that is retained down is adsorbed on the surface of microbial film and mud, under the effect of a large amount of anerobes, be dissolved matter with insoluble hydrolysis of organic matter, under the acid-producing bacteria effect, macromolecular substance, the material that is difficult to biochemical degradation be converted into simultaneously and be easy to biodegradable small-molecule substance, be discharged in the water body again.
Anaerobic technique adopts the method for bio-contact oxidation.Because in the anaerobic biological treating pond, flow rate of water flow is very slow, treating water tank waterpower dead angle is very big, so just greatly reduces the volume utilization of handling the pond.Therefore, whipping appts is set to improve the processing efficiency of anaerobic pond in anaerobic pond.
3) aerobic biochemical is handled:
The aerobic biochemical treating processes is the stage that the organic pollutant eventual degradation is removed in the sewage.
It is to remove dissolved organic matter in the sewage that aerobic biochemical is handled, and reduces the effective way of BOD, and the technology that adopts has active sludge to send out or biological contact oxidation process at present.Activated sludge process cooperates extended aeration to use by traditional activated sludge process; Biological contact oxidation process is the metabolism of a kind of utilization attached to the microorganism in the microbial film on the filler in the pond, under aerobic conditions, oxidation operation in the sewage is degraded into the biological treatment of carbonic acid gas and water.
4) post-processed:
Because the BOD concentration height of sewage, so microorganism will produce meta-bolites in the metabolic processes of self, and these meta-bolitess will discharge with the biochemical treatment water outlet, therefore, can produce a certain amount of COD.For guaranteeing the discharging of sewage stably reaching standard, water outlet after the process biochemical treatment need enter into carries out coagulating treatment in the settling pond, sewage qualified discharge or to be drained into water reservoir 11 for people to use after coagulating treatment, the water that enter in the water reservoir 11 can carry out sterilization and disinfection by sterilizing unit 12.
As mentioned above, just can realize the utility model preferably.