A kind of alkaline coal mine wastewater treatment device
Technical field
The utility model relates to the coal mine technical field of waste water processing, particularly a kind of alkaline coal mine wastewater treatment device.
Background technology
In industrial production, if directly discharge of the alkaline coal mine waste water that contains impurity pollutes the environment, after treatment can recycling, can can be coal mining enterprise and bring significant economic benefit for field irrigation or other purposes, avoided the pollution of waste water to environment simultaneously.But, in the prior art of alkaline coal mine wastewater treatment device, have following defect: separately, floor space is large for neutralization, precipitation; Do not arrange and using 3 D elastic filler as the anoxic tank of denitrifying bacterium carrier, can not efficiently remove the ammonia nitrogen in waste water; Do not use the hay tank containing manganese sand filler after designing first aeration, de-ironing efficiency is low.
The utility model content
For above-mentioned problems of the prior art, the purpose of this utility model is: propose a kind of alkaline coal mine wastewater treatment device that can effectively improve the rear outlet effect of processing, the water outlet of this equipment does not only pollute the environment, can also, for field irrigation, also efficiently solve the large problem of alkaline coal mine wastewater treatment device floor space.
The utility model solves the technical scheme that its technical problem adopts:
A kind of alkaline coal mine wastewater treatment device, described sewage treatment equipment, comprise regulating tank, the anoxic tank, aerobic tank, hay tank, adsorption tanks and disinfection tank, the top water outlet of described regulating tank is connected with the lower water inlet of described anoxic tank, the top water outlet of described anoxic tank is connected with the lower water inlet of described aerobic tank, the top water outlet of described aerobic tank is connected with the lower water inlet of described hay tank, the top water outlet of described hay tank is connected with the top water-in of described adsorption tanks, the bottom water outlet of described adsorption tanks is connected with the bottom water-in of described disinfection tank.
As preferred version, described regulating tank is vertical-flow precipitation structure, and inside is provided with deceleration tube, swash plate and guiding device, described deceleration tube one end connects the middle part water-in of described regulating tank, the other end is connected to described guiding device, waste water enters from the water inlet pipe at regulating tank middle part, by deceleration tube to dirty, described deceleration tube can make the flow velocity of waste water be down to below 25 mm/second, thereby improved the sedimentation effect of suspended substance in waste water, described swash plate, adopt the different flow type swash plate, and be arranged on described guiding device top, described swash plate distributes ringwise around described deceleration tube, and be fixed on the inwall of described regulating tank, and the swash plate obliquity is between the 70-85 degree, form a sloping plate deposition district, for precipitating the solid matter that waste water waste water is larger.
As preferred version, the diameter of described deceleration tube is greater than the diameter of the water inlet pipe of described regulating tank.
Described guiding device is a conical reflector, when the water flowed out from deceleration tube runs into the tapered slope of this reflector, can upwards evenly reflex on the swash plate of guiding device top with different directions, the upper surface of described conical reflector and level are 16 degree angles, the base diameter of described conical reflector is that 1.3 times of deceleration tube diameter can play guide functions, make waste water after the whole horizontal plane of regulating tank is uniformly distributed, upwards flow, avoided affecting because water distribution is uneven sedimentation effect.
Be equipped with for the 3 D elastic filler as the denitrifying bacterium carrier described anoxic tank inside, thereby improved the removal efficiency of ammonia nitrogen, and the ammonia of the nitric nitrogen in nitrification liquid and nitrous acid state, under the effect of denitrifying bacterium, is reduced into nitrogen, thereby reach the purpose of denitrogenation.
New elastic filler for increasing aerobic bacteria and waste water contact area is housed in described aerobic tank, thereby increased the contact area of aerobic bacteria and waste water, and the easy conjunctiva of described new elastic filler, the difficult obstruction, and it is 5 hours that waste water stops in aerobic tank, gas-water ratio is 15: 1, aerobic bacteria can effectively decompose oils and other organism etc., thereby reaches the purpose that reduces chemical oxygen demand of waste water and oil removing.
Described aerobic pot bottom is provided with an aerating apparatus, and for aerobic bacteria provides source of the gas, the while becomes the reaction of ferric ion that oxygen is provided to the oxidation of divalent iron ion in waste water.
Be filled with the manganese sand filtering material in described hay tank, in the situation that manganese sand is as catalyzer, the ferrous ion in waste water and oxygen reaction generate ferric ion, form the solid hydrogen iron oxide precipitation in hay tank, thereby reach the purpose of waste water deironing.
Be provided with epipastic mineral raw material gac in described adsorption tanks, can remove the organism such as phenols, fecal coliform class, roundworm egg and heavy metal ion in waste water.
Be filled with ozone in described disinfection tank, but kill vegetative forms of bacteria and gemma, virus, fungi, thus reach the purpose of bacteriums such as removing excrement colibacillus group, virus.
The beneficial effects of the utility model are: the utility model provides a kind of alkaline coal mine wastewater treatment device that can effectively improve treatment effect, can effectively reduce because it is designed with deceleration tube the flow rate of liquid that enters equalizing tank, improve contamination precipitation effect in waste water; And pH regulator and precipitation two large functions have been had both in the design of regulating tank, effectively reduced the floor space of equipment; Simultaneously, also be provided with and using 3 D elastic filler as the anoxic tank of denitrifying bacterium carrier, thereby removed efficiently the ammonia nitrogen in waste water, and also designed the hay tank containing manganese sand filler after aeration, make it remove iron efficiency higher.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Wherein, 1, regulating tank, 2, swash plate, 3, deceleration tube, 4, guiding device, 5, anoxic tank, 6, the stereo-elastic material, 7, aerobic tank, 8, aerating apparatus, 9, new resilient material, 10, hay tank, 11, manganese sand filler, 12, adsorption tanks, 13, epipastic mineral raw material gac, 14, disinfection tank.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, the utility model is a kind of alkaline coal mine wastewater treatment device, comprises regulating tank 1, anoxic tank 5, aerobic tank 7, hay tank 9, adsorption tanks 12, disinfection tank 14, and equipment room is used pipeline to connect.
During work, waste water enters regulating tank 1 from the fluid inlet at regulating tank middle part, on the pipeline before entering regulating tank, adds 50% dilute sulphuric acid to regulate potential of hydrogen, thereby Jiang pH who makes alkaline waste water is to 6.5-8; Pass through regulating tank water inlet pipe, deceleration tube 3 to dirty, the deceleration tube diameter is larger than regulating tank water inlet pipe again, and the waste water flow velocity that can significantly slow down, be conducive to improve contamination precipitation effect in waste water.Waste water is through the backward upper reaches of the reflector of guiding device 4, and the reflector upper surface, horizontal by the angle of 16 degree, can play guide functions, make waste water after the whole horizontal plane of regulating tank is uniformly distributed on flow, avoid affecting because water distribution is uneven sedimentation effect.Waste water, through the backward upper sloping plate deposition district of first passing through of the reflector of guiding device 4, is designed with the different flow type swash plate in the sloping plate deposition district, and the larger solid precipitation in waste water slides into device bottom after on swash plate automatically.
Waste water enters anoxic tank 5 bottoms from regulating tank top outlet is flowed out, in the anoxic tank, the ammonia nitrogen in waste water with using the denitrifying bacterium of 3 D elastic filler 6 as carrier and contact, react, finally generate nitrogen and detach waste water, reached the purpose of denitrogenation.
Waste water after denitrogenation enters from aerobic tank 7 bottoms, be attached to new elastic filler 9 on aerobic bacteria contact after, the oils in waste water, organism etc. are decomposed, and reach the purpose that reduces chemical oxygen demand of waste water, oil removing.Aerobic pot bottom is designed with aerating apparatus 8, and for aerobic bacteria provides source of the gas, the while becomes the reaction of ferric ion that oxygen is provided to the oxidation of divalent iron ion in waste water.
Waste water enters from hay tank 10 bottoms from flow out on aerobic tank top, and under the katalysis of manganese sand 11, the oxidation of divalent iron ion in waste water becomes ferric ion and forms oxidation iron solid, thereby reaches the purpose of deironing.
Waste water enters adsorption tanks 12 tops from flow out on hay tank top, and in adsorption tanks, the impurity such as the organism such as the phenols in waste water, excrement colibacillus group, roundworm egg, heavy metal ion are by 13 absorption of epipastic mineral raw material gac, interception.
Waste water enters from disinfection tank 14 bottoms from flow out the hay tank bottom, and in disinfection tank, waste water fully mixes with ozone, stops one hour, but kill vegetative forms of bacteria and gemma, virus, fungi.Reach the purpose of bacteriums such as removing excrement colibacillus group, virus.
The water outlet of flowing out from the outlet of hay tank top, met GB 20426-2006 " coal-mining industry pollutant emission standard ", higher than GB5084-2005 " agricultural irrigation water quality standard ", and can be for field irrigation.
Principal character and the innovative point of this programme only described in above demonstration.Those skilled in the art should understand, and this programme is not restricted to the described embodiments.Under the prerequisite that does not break away from the innovation point and protection domain, this programme also has various variations, and these changes and improvements all will fall in the claimed scope of this programme.The claimed scope of this programme is limited by appending claims and equivalent thereof.