CN102120652A - Coal-based adsorption sewage treatment method and adsorption system - Google Patents
Coal-based adsorption sewage treatment method and adsorption system Download PDFInfo
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- CN102120652A CN102120652A CN 201110032051 CN201110032051A CN102120652A CN 102120652 A CN102120652 A CN 102120652A CN 201110032051 CN201110032051 CN 201110032051 CN 201110032051 A CN201110032051 A CN 201110032051A CN 102120652 A CN102120652 A CN 102120652A
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Abstract
A coal-based adsorption sewage treatment method comprises the following steps: a plurality of adsorption tanks are connected to form an adsorption system, each adsorption tank is filled with an adsorbing material prepared from coal, sewage is conveyed by a pump, coal-based filtration and adsorption are performed, sewage is detected, reuse water is discharged, and the adsorption tanks are changed. The coal-based adsorption sewage treatment device of the invention consists of a plurality of adsorption tanks which are connected in series through pipes, wherein sewage flows into the bottom of one adsorption tank and flows out through an upper overflow outlet, the overflowing water flows into the bottom of the next adsorption tank for further filtering and absorbing the impurities and pollutants in the water. The connecting pipeline of the adsorption system is provided with a plurality of control valves and water quality monitoring devices so as to control the flow directions of the sewage and overflowing water. sewage flows through a plurality of adsorption tanks, when the overflowing water meets the treatment standard, the water quality monitoring devices are used to prompt the operator to discharge the qualified water to a reuse water conveying main pipe. The coal with absorbed harmful substances is used as fuel to burn; and the adsorbing material is disposable and has thorough treatment effect.
Description
Technical field
The present invention relates to water-treatment technology field, relate to a kind of method and setting of adsorption type sewage disposal, specifically refer to the method and the adsorption system of coal-based adsorption treatment sewage.
Background technology
The method of sewage disposal is difficult to win number, by filter, adsorption mechanism is handled is method the most fast and effectively, but because processing cost is too high, or the adsorbing base quantity after using is too big, cause the second ring environment pollution, existing filtration, adsorption technology can not be widely used.Present sewage disposal is most to be handled with biodegradable mechanism, and exist following shortcoming: (1) degradation speed is slow; (2) treatment effect is subjected to the influence of envrionment temperature very big, and in the winter time, the organic matter degradation speed in the waste water is slower; (3) the structures floor space is big, and the construction investment height can't be moved; (4) the later settled sludge processing cost height of degraded, and how many secondary pollution problems of some treating processes all.
For this reason, screen a kind of adsorption efficiency height, cost is low, the adsorbing base that can be reused; It is strong to design a kind of processing capacity, and the water treating equipment that running cost is low are to promoting that construction of environmental protection is significant.
The inventor notices that the printing and dyeing mill that produces large amount of sewage is common and heat power plant is contiguous, and heat power plant uses coal quantity very huge.In view of this, inventor imagination can be a large amount of coal cinders of heat power plant earlier as the sorbent material of treatment of dyeing and printing, and then combustion power generation.The coal of doing behind the sorbent material still can keep original thermal transition efficient, and dyeing waste water has obtained thorough processing.Do like this function of heat power plant is further promoted: fire coal has possessed the dual-use function of water treatment absorbent and fuel, and the firing system of heat power plant has also possessed the multi-functional of coal fired power generation and waste incineration.Undoubtedly, this technological operation is simple, and ecological benefits and economic benefit are apparent.
Summary of the invention
The object of the present invention is to provide a kind of treatment effect good, it is low to handle energy consumption, the disposable use of sorbing material, does not have secondary pollution, handles simple to operate, nonclogging sewage water treatment method and setting.Need: (1) makes a kind of material for this reason, makes it have both multiple adsorption mechanism (physical adsorption, chemisorption, filtration etc.), can fast and effeciently remove all kinds of pollutants in waste water; When this material adsorptive power is saturated, can easily do he with and can not cause secondary pollution.(2) provide a kind of operation simple in structure, easy, equipment that cost is moderate.
To achieve these goals, technical scheme of the present invention is as follows:
The method of coal-based adsorption treatment sewage comprises the steps: to make coal-based sorbing material, and a plurality of adsorption tanks connect into adsorption system with pipeline, fills sorbing material in adsorption tanks, pumping sewage, effluent stream is through sorbing material, the online detection of concentration of wastewater, adsorption tanks are changed in the reuse water discharging.
Sewage flows into from the sewage induction pipe of adsorption tanks bottom, flow out from the spilling water output tube on adsorption tanks top, in the process of seepage flow that makes progress, the sorbing material that impurity in the sewage and objectionable impurities are touched is by direct absorption or mechanism such as hold back and be trapped in the adsorption tanks, the time that sewage stops in each adsorption tanks is set to 0.1-6 hour, and concentration of narmful substance in the sewage and time relation can be expressed with the exponential function formula:
N?=?N
O?*?e?
(-at)
N
OBe the starting point concentration of pollutent before the wastewater treatment, a is an absorption constant, and t is the residence time of sewage in adsorption tanks, N be in the wastewater treatment process pollutent when t, be engraved in dynamic concentration in the adsorption tanks.
The water that overflows from last adsorption tanks flows into the sewage induction pipe of next adsorption tanks and proceeds to handle, effluent stream is behind several adsorption tanks, when detecting spillway water quality and met the processing standard, prompting operation worker is discharged into the reuse water delivery manifold to the water that overflows up to standard.
Continuous increase along with wastewater treatment capacity, adsorptive power trend state of saturation in various degree can appear in the sorbing material in each adsorption tanks, when the water quality detecting device of final stage adsorption tanks is reported to the police, removes the first segment adsorption tanks, new adsorption tanks in the terminal connection of system are proceeded to handle; Changing adsorption tanks like this as required successively, the coal-based sorbing material that has adsorbed a large amount of objectionable impuritiess is acted as a fuel burn, through high-temp combustion, is ashes by coal adsorbed contaminants materialization, handles very thorough.
Described coal-based sorbing material selects for use common fire coal as basic material, coal is ground into the particle that diameter range is 0.5 ~ 2mm, with all kinds of binding agent uniform mixing, make the water-stable granular structure that particle size range is 5 ~ 15mm with surface adsorption function.Use calcium-base bentonite as binding agent, the weight percent of binding agent and coal grain is 0.01 to 30%.Also can directly use common fire coal as sorbing material.This sorbing material specific surface area is big, pore texture is flourishing, water stability good, absorption property is high.The waste water that COD is high, colored dyeing waste water is through above-mentioned processing, the organic substance in the waste water can by multiple mechanism (as filtration hold back, surface adsorption etc.) be trapped on the sorbing material.The organic waste water that saltiness height or toxic substance content are high can't be handled with biological degradation, and after using the present invention to handle, and the contained montmorillonoid thing of wilkinite is adsorbed on mineral surface to the base cation in the waste water by the mechanism of cationic exchange.Organic substance can be trapped on the sorbing material, and inorganic salts can be adsorbed by calcium-base bentonite, thereby reaches the effect of sewage disposal.
Pumping sewage is meant directly sewage water pump delivery to the adsorption tanks bottom, perhaps uses the peak valley electricity that sewage is drawn in the high sewage tower of drop at night, utilize the pressure of waterhead make waste water from adsorption tanks bottom seepage flow to the top.
Coal-based adsorption system of disposing of sewage comprises adsorption tanks, control valve, water quality detecting device, sewage transport house steward, reuse water delivery manifold;
Connect mutually with pipeline between the adsorption tanks, the spilling water output tube of each adsorption tanks is all connecting the sewage induction pipe of next adsorption tanks, is provided with control valve on the connecting pipeline; After the sewage process adsorption treatment of last adsorption tanks bottom input, the sewage induction pipe that enters next adsorption tanks bottom by spillway hole is proceeded to handle; Thereby form a series connection adsorption system.
The sewage induction pipe of each adsorption tanks that has been connected in parallel on the sewage transport house steward, and be provided with control valve on the connecting pipeline of sewage induction pipe front end is used for controlling and enters certain adsorption tanks through selecting.
The spilling water output tube of each adsorption tanks is connected in parallel on the reuse water delivery manifold, all be provided with water quality detecting device and control valve on the connecting pipeline, according to the prompting of water quality detecting device, it is to flow to next adsorption tanks or flow to the reuse water delivery manifold that water is overflowed in control.
In large-scale Waste Water Treatment, can set up a plurality of series connection adsorption systems, the water outlet and the reuse water delivery manifold of each series connection adsorption system are connected in parallel.
The bottom of described adsorption tanks is provided with the sewage induction pipe of oblique placement, the adsorption tanks top spillway hole that has been uniformly distributed along the circumference, and the periphery of spillway hole is provided with overflows ring, overflows connecting the spilling water output tube on the ring.
Open cover,, pack height into below spillway hole from the tank deck sorbing material of packing into.The jar of described adsorption tanks tilts at an end, is provided with discharge opening in least significant end, the turnover panel that can swing around bearing pin discharge opening being provided with, and when disposing of sewage, hermetically closing; When discharging, opening then hangs downwards.
Changing the not frequent large-scale adsorption tanks of sorbing material can also have another kind of structure, has covered the cover of falling the funnel-form of band spilling water output tube on the adsorption tanks, and in use, cover and adsorption tanks are tightly connected; Be funnel-form at the bottom of the adsorption tanks jar, and be provided with sewage induction pipe, place the shelf of a band sieve aperture at the bottom of the adsorption tanks jar, in order to avoid sorbing material stops up sewage induction pipe.
The manipulation of native system is pointed out automatically by instrument, and the operative employee gets final product according to prompting replacing adsorption tanks, opening and closing several valves, does not need higher technical quality and level of management.
Description of drawings
Fig. 1 is the schematic flow sheet of coal adsorption treatment sewage;
Fig. 2 is the stereographic map of adsorption tanks;
Fig. 3 is the front view of adsorption tanks;
Fig. 4 is the sectional view along B-B line among Fig. 3;
Fig. 5 is the complete section figure of embodiment 2.
Description of reference numerals:
1 adsorption tanks, 11 sewage induction pipes, 12 spilling water output tubes, 13 turnover panels, 14 overflow ring, 15 spillway holes, 16 jars of pin, 2 control valves, 3 sewage transport house stewards, 4 water quality detecting devices, 5 reuse water delivery manifolds, 6 covers, 7 sieve aperture shelves.
Embodiment
Below by drawings and Examples the present invention is further elaborated.
Embodiment 1:
Certain printing and dyeing mill's discharge of sewage is 150 tons/day, COD of sewage concentration is about about 150 mg/L, ammonia-nitrogen content is 30～35 mg/L, total phosphorus is 5.5 mg/L, total nitrogen is 40～45 mg/L, use adsorption system as shown in Figures 1 to 4 to handle, comprise adsorption tanks 1, control valve 2, water quality detecting device 3, sewage transport house steward 4, reuse water delivery manifold 5.The bottom of each adsorption tanks 1 is provided with the sewage induction pipe 11 of oblique placement, and the present embodiment gradient is 45 degree, is enough to stop ickings to fall into waste pipe import 11, in order to avoid result in blockage.
Around sewage is led in the flow event that makes progress equably, reduce the dead angle, contact sorbing material as much as possible, the adsorption tanks 1 top spillway hole 15 that has been uniformly distributed along the circumference, it is that orthogonal overflows ring 14 that the periphery of spillway hole 15 is provided with the cross section, overflow on the ring 14 and connecting spilling water output tube 12, the spilling water output tube 12 of each adsorption tanks 1 is all connecting the sewage induction pipe 11 of next adsorption tanks 1, all be provided with water quality detecting device 4 and control valve 2 on the connecting pipeline, form the adsorption system of three adsorption tanks 1 of having connected.After the sewage process adsorption treatment of first adsorption tanks 1 bottom input, gush from spillway hole 15, by overflowing the sewage induction pipe 11 that enters next adsorption tanks 1 bottom after ring 14 and spilling water output tube 12 compile; Sewage a plurality of adsorption tanks 1 of flowing through successively when water quality meets the processing standard, flow into reuse waters from the spilling water output tube 12 of adsorption tanks 1 and pass on house steward 5.
Be connected in parallel on the sewage transport house steward 3 sewage induction pipe 11 of each adsorption tanks 1 all is provided with control valve 2 on the connecting pipeline; Be used to control sewage and enter certain adsorption tanks 1 through selecting.
The be connected in parallel spilling water output tube 12 of each adsorption tanks 1 of reuse water delivery manifold 5 all is provided with water quality detecting device 4 and control valve 2 on the connecting pipeline.If detect overflow water and also do not reach the processing standard time, the control spill stream is to the sewage induction pipe 11 of next adsorption tanks 1 bottom; If detect when overflowing water and reaching the processing standard, the control valve 2 that water quality detecting device 4 will be reminded the operative employee to close to flow to next adsorption tanks 1 is opened the control valve 2 that flows to reuse water delivery manifold 5.
The jar of adsorption tanks 1 tilts at an end, the discharge opening turnover panel 13 that can swing around bearing pin least significant end being provided with, and when disposing of sewage, turnover panel 13 hermetically closings; When discharging, then turnover panel 13 downward vertically, the operative employee can catch the sorbing material that falls with dolly at discharge opening, so that transport the boiler house to.
Embodiment 2:
For the large-scale adsorption tanks of handling sewage of low concentration, also can be arranged to another kind of structure, large-scale adsorption tanks diameter 2000mm, high 20000mm; Jar top is not provided with overflows ring 14 and overfolw hole 15, uses the cover of falling the funnel-form 6 of cover tape spilling water output tube 12 on adsorption tanks 1 instead, sagitta 100～150mm; In use, cover 6 and adsorption tanks 1 are tightly connected; The jar end, be funnel-form, and the bottom is provided with sewage induction pipe 11, and a sieve aperture shelf 7 is placed at jar end, prevents that sorbing material from falling the obstruction sewage induction pipe.
Connecting pipeline between the adsorption tanks, water quality detecting device, control valve and operating process thereof are identical with embodiment 1.
The above only is one embodiment of the present of invention; it is not restriction to this case design; all equivalent variations of doing according to the design key of this case; for example the spilling water ring of embodiment 1 will be cooperated at the bottom of the leakage head jar of embodiment 2; similar multiple combinations such as sewage induction pipe extends in the adsorption tanks all fall into the protection domain of this case.
Claims (9)
1. the method for coal-based adsorption treatment sewage, it is characterized in that treatment scheme comprises the steps: to make sorbing material, a plurality of adsorption tanks connect into adsorption system with pipeline, in adsorption tanks, fill sorbing material, pumping sewage, effluent stream is through sorbing material, the online detection of concentration of wastewater, adsorption tanks are changed in the reuse water discharging; The time that sewage stops in each adsorption tanks is set to 0.1-6 hour.
2. the method for coal-based adsorption treatment sewage according to claim 1, it is characterized in that: described coal-based sorbing material selects for use common fire coal as basic material, coal is ground into the particle that diameter range is 0.5 ~ 2mm, with all kinds of binding agent uniform mixing, make the water-stable granular structure that particle size range is 5 ~ 15mm with surface adsorption function.
3. the method for coal-based adsorption treatment sewage according to claim 2 is characterized in that: described binding agent is selected calcium-base bentonite for use, and the weight percent of binding agent and coal grain is 0.01 % to 30%.
4. the method for coal-based adsorption treatment sewage according to claim 1 is characterized in that: described coal-based sorbing material directly selects for use common fire coal as sorbing material.
5. the method for coal-based adsorption treatment sewage according to claim 1 is characterized in that: handle as coal-fired after described coal-based sorbing material is replaced, adsorbed pollutent is handled with the method for burning.
6. coal-based adsorption system of disposing of sewage is characterized in that: comprise adsorption tanks, control valve, water quality detecting device, sewage transport house steward, reuse water delivery manifold;
Connect with pipeline between the adsorption tanks, the spilling water output tube of each adsorption tanks is all connecting the sewage induction pipe of next adsorption tanks, is provided with control valve on the connecting pipeline;
Be connected in parallel on the sewage transport house steward sewage induction pipe of each adsorption tanks all is provided with control valve on the connecting pipeline of sewage induction pipe front end;
The spilling water output tube of each adsorption tanks is connected in parallel on the reuse water delivery manifold, all is provided with control valve and water quality detecting device on the connecting pipeline.
7. coal-based adsorption system of disposing of sewage according to claim 6, it is characterized in that: the bottom of described adsorption tanks is provided with the sewage induction pipe of oblique placement, the adsorption tanks top spillway hole that has been uniformly distributed along the circumference, the periphery of spillway hole is provided with overflows ring, overflows connecting the spilling water output tube on the ring.
8. coal-based adsorption system of disposing of sewage according to claim 6 is characterized in that: the jar of described adsorption tanks tilts at an end, is provided with discharge opening in least significant end, the turnover panel that can swing around bearing pin discharge opening being provided with, and when disposing of sewage, hermetically closing; When discharging, opening then hangs downwards.
9. coal-based adsorption system of disposing of sewage according to claim 6 is characterized in that: covered the cover of falling the funnel-form of band spilling water output tube on the described adsorption tanks, in use, cover and adsorption tanks are tightly connected; Be funnel-form at the bottom of the adsorption tanks jar, and be provided with sewage induction pipe; Place the shelf of a band sieve aperture at the bottom of the adsorption tanks jar.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973655A (en) * | 2014-04-03 | 2015-10-14 | 北京国投盛世科技股份有限公司 | Natural zeolite water treatment agent |
| CN109467205A (en) * | 2018-12-19 | 2019-03-15 | 武汉格林环保设施运营有限责任公司 | High-concentration organic wastewater treatment system |
| CN111272965A (en) * | 2020-03-10 | 2020-06-12 | 广东通达检测技术有限公司 | Remote multi-parameter water quality detection equipment and water quality detection method |
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| CN1107879A (en) * | 1994-08-29 | 1995-09-06 | 华东理工大学 | Active sludge briquet and its producing method |
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| CN104973655A (en) * | 2014-04-03 | 2015-10-14 | 北京国投盛世科技股份有限公司 | Natural zeolite water treatment agent |
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| CN111272965A (en) * | 2020-03-10 | 2020-06-12 | 广东通达检测技术有限公司 | Remote multi-parameter water quality detection equipment and water quality detection method |
| CN111272965B (en) * | 2020-03-10 | 2022-05-10 | 广东通达检测技术有限公司 | Remote multi-parameter water quality detection equipment and water quality detection method |
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