CN105461118A - Coal mine sewage treating and recycling technology - Google Patents

Coal mine sewage treating and recycling technology Download PDF

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Publication number
CN105461118A
CN105461118A CN201610018842.9A CN201610018842A CN105461118A CN 105461118 A CN105461118 A CN 105461118A CN 201610018842 A CN201610018842 A CN 201610018842A CN 105461118 A CN105461118 A CN 105461118A
Authority
CN
China
Prior art keywords
sewage
tank
water
coal mine
settling tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610018842.9A
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Chinese (zh)
Inventor
林金华
林泰成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuzhou Huahong Sewage Treatment Co Ltd
Original Assignee
Wuzhou Huahong Sewage Treatment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuzhou Huahong Sewage Treatment Co Ltd filed Critical Wuzhou Huahong Sewage Treatment Co Ltd
Priority to CN201610018842.9A priority Critical patent/CN105461118A/en
Publication of CN105461118A publication Critical patent/CN105461118A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions

Abstract

The invention provides a coal mine sewage treating and recycling technology. The coal mine sewage treating and recycling technology includes the steps that sewage enters a high-position settling pond for water quality balancing, then enters a water purifying pond for flocculating settling, enters a middle aeration tank for oxygenation aeration, and finally enters a manganese sand filter for treatment, and outlet water meets the recycled water reusing standard. The coal mine sewage treating and recycling technology has the advantages that the sewage load rate is high, impacting resistant loads are high, and the inlet water is not limited; the sewage and a coagulant are sufficiently mixed and reacted, and the quality of the outlet water is stable; the manganese sand filter is additionally arranged, and therefore metal ions such as iron and manganese in the sewage can be better treated; the outlet water meets the recycled water reusing standard and can be used as fire protection water or directly used as other kinds of production water such as coal mine spraying water.

Description

Coal mine sewage treatment and reuse technique
Technical field
The present invention relates to sewage treatment area, particularly a kind of coal mine sewage treatment and reuse technique.
Background technology
Coal accounts for more than 70% in China's energy structure, mine coal makes the good underground water of original water quality be polluted, a large amount of coal dust, rock dust, suspended substance, artifact pollution and microorganism enter in water, height such as suspended substance, chemical oxygen demand (COD), sulfide and total hardness grade in some coal mine sewages.So mine discharges the not treated direct discharge of sewage that exceeds standard in a large number, will cause severe contamination, and cause a large amount of wastes of water resources to environment simultaneously.Coal mine sewage water quality mainly SS, COD, colourity etc. exceeds standard, and petroleum-type trace over standard, iron, manganese plasma exceed standard.Very large difficulty is brought to selecting of colliery wastewater treating technology.
Coal mine sewage is a kind of resource of preciousness, how treatment for reuse, does a lot of work for many years, achieves certain achievement.But the treatment process of current domestic employing remains traditional technology, although this technique treatment for reuse water effect is better, technique falls behind, and equipment, facility are complicated, and construction investment is large, and floor space is many, and working cost is high, and operational administrative is inconvenient.
Summary of the invention
The object of the present invention is to provide a kind of coal mine sewage treatment and reuse technique, make water outlet reach Treated sewage reusing standard.
For achieving the above object, coal mine sewage treatment and reuse technique of the present invention, sewage enters the balanced water quality of high-order settling tank, then enter water purifying tank and carry out flocculating settling, enter middle aeration tank again and carry out oxygenic aeration, finally enter manganese sand filter process, water outlet reaches Treated sewage reusing standard.
Described coal mine sewage treatment and reuse technique, concrete technology step is as follows:
1) balanced water quality: sewage enters high-order settling tank, the impurity such as preliminary sedimentation macrobead silt;
2) flocculating settling: water purifying tank comprises coagulation reaction tank and settling tank, is provided with inclined tube in settling tank; Sewage enters coagulation reaction tank, settling tank successively, in coagulation reaction tank by the pH regulator of sewage to 8, then add PAC and PAM coagulating agent and carry out coagulating, the small particle size suspended substance in sewage can flocculate into Large stone suspended substance; The heavy effect that helps by inclined tube after sewage enters settling tank from coagulation reaction tank bottom carries out settle to Large stone suspended substance;
3) oxygenic aeration: sewage enters middle aeration tank, carries out oxygenic aeration;
4) filtration with manganese sand; Sewage enters manganese sand filter, under the effect at catalyzer of the sewage of oxygenic aeration process, the metal ions such as the iron in sewage, manganese is oxidized to undissolved compound, then removes after filtration;
5) water outlet, reaches Treated sewage reusing standard.
The position of described high-order settling tank is higher than water purifying tank, and difference of altitude is 5 meters.
Described high-order settling tank is also provided with fluid level controller.
Above described settling tank, also peace turn has overflow groove, aeration tank in the middle of sewage flows to from overflow groove.
Inclined tube in described settling tank is hexagon cellular inclined tube.
Substantive distinguishing features of the present invention and progress are:
The coal mine sewage treatment and reuse technique of the application, has the following advantages: 1, sewage rate of load condensate is high, and anti impulsion load is high, unrestricted to inflow requirement.2, sewage mixes and sufficient reacting with coagulating agent, stable effluent quality.3, manganese sand filter is increased, the metal ions such as the iron in disposing of sewage better, manganese.4, water outlet reaches Treated sewage reusing standard, can be used for water for fire-fighting purpose, or other water of productive use such as the spray being directly used in colliery.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Component serial number and title in figure:
High-order settling tank 1, fluid level controller 2, coagulation reaction tank 3, hexagon cellular inclined tube 4, settling tank 5, overflow groove 6, middle aeration tank 7, manganese sand filter 8.
Embodiment
Below in conjunction with drawings and Examples, principle of work of the present invention is described.
As shown in Figure 1, coal mine sewage treatment and reuse technique of the present invention, sewage enters the balanced water quality of high-order settling tank 1, then enter water purifying tank and carry out flocculating settling, enter middle aeration tank 7 again and carry out oxygenic aeration, finally enter manganese sand filter 8 and process, water outlet reaches Treated sewage reusing standard.
Concrete technology step is as follows:
1) balanced water quality: the impurity such as sewage enters high-order settling tank 1, preliminary sedimentation macrobead silt.
When sewage is extracted into water treatment station from mine, variation water quality is comparatively large, now in sewage containing a large amount of easy sand setting grains, high-order settling tank 1 can reduce the impact load to subsequent purification process.
The position of high-order settling tank 1 is higher than water purifying tank, and difference of altitude is 5 meters.High-order settling tank 1 is arranged on higher position place, makes it to keep certain discrepancy in elevation with water purifying tank, is beneficial to sewage from high-order settling tank 1 from flowing to water purifying tank process, and can be provided with tapered mud storage collection groove bottom high-order settling tank 1, facilitates spoil disposal.
High-order settling tank 1 is also provided with fluid level controller 2, for monitoring the liquid level of sewage.
2) flocculating settling: water purifying tank comprises coagulation reaction tank 3 and settling tank 5, is provided with inclined tube in settling tank 5; Sewage enters coagulation reaction tank 3, settling tank 5 successively, in coagulation reaction tank 3 by the pH regulator of sewage to 8, then add PAC and PAM coagulating agent and carry out coagulating, the small particle size suspended substance in sewage can flocculate into Large stone suspended substance; The heavy effect that helps by inclined tube after sewage enters settling tank 5 from coagulation reaction tank 3 bottom carries out settle to Large stone suspended substance.
Sewage carries out rapid reaction coagulative precipitation in coagulation reaction tank 3, the part fine suspension of come band and colloid proceed flocculation, reaction, form the alumen ustum that particle is closely knit greatly, again by under in settling tank 5, big area inclined tube helps heavy effect, carry out mud-water separation, overwhelming majority suspended substance and colloid are retained down effectively to be removed, and sludge settling is to mud Zhu Ji district.
Inclined tube in settling tank 5 is hexagon cellular inclined tube 4, effectively carries out the precipitation of suspended substance.Above settling tank 5, also peace turn has overflow groove 6, and sewage flows to middle aeration tank 7 from overflow groove 6.The effect of overflow groove 6 is: stop and prevent mud from running out by the mud that settling tank 5 floats.The all right adjusting water outlet level of overflow groove 6 simultaneously, equalization of discharge flow velocity, prevents sewage from too concentrating and flows out from another point.
3) oxygenic aeration: sewage enters middle aeration tank 7, carries out oxygenic aeration.
4) filtration with manganese sand; Sewage enters manganese sand filter 8, under the effect at catalyzer of the sewage of oxygenic aeration process, the metal ions such as the iron in sewage, manganese is oxidized to undissolved compound, then removes after filtration.
Sewage is after the oxygenation of middle aeration tank 7, under the katalysis of manganese sand filter 8 inner catalyst, be oxidized formation compared with lower valency Fe and Mn under making dissolved state and do not dissolve precipitation of hydroxide, and remove after filtration, reach the object of removing contamination and being separated and removing the metal ion such as iron, manganese.
5) water outlet, reaches Treated sewage reusing standard.

Claims (6)

1. a coal mine sewage treatment and reuse technique, it is characterized in that: sewage enters high-order settling tank (1) balanced water quality, then enter water purifying tank and carry out flocculating settling, enter middle aeration tank (7) again and carry out oxygenic aeration, finally enter manganese sand filter (8) process, water outlet reaches Treated sewage reusing standard.
2. coal mine sewage treatment and reuse technique according to claim 1, it is characterized in that, concrete technology step is as follows:
1) balanced water quality: the impurity such as sewage enters high-order settling tank (1), preliminary sedimentation macrobead silt;
2) flocculating settling: water purifying tank comprises coagulation reaction tank (3) and settling tank (5), and settling tank is provided with inclined tube in (5); Sewage enters coagulation reaction tank (3), settling tank (5) successively, in coagulation reaction tank (3) by the pH regulator of sewage to 8, carry out coagulating by adding PAC and PAM coagulating agent, the small particle size suspended substance in sewage can flocculate into Large stone suspended substance; The heavy effect that helps by inclined tube after sewage enters settling tank (5) from coagulation reaction tank (3) bottom carries out settle to Large stone suspended substance;
3) oxygenic aeration: sewage enters middle aeration tank (7), carries out oxygenic aeration;
4) filtration with manganese sand; Sewage enters manganese sand filter (8), under the effect at catalyzer of the sewage of oxygenic aeration process, the metal ions such as the iron in sewage, manganese is oxidized to undissolved compound, then removes after filtration;
5) water outlet, reaches Treated sewage reusing standard.
3. coal mine sewage treatment and reuse technique according to claim 1, is characterized in that: the position of described high-order settling tank (1) is higher than water purifying tank, and difference of altitude is 5 meters.
4. coal mine sewage treatment and reuse technique according to claim 1, is characterized in that: described high-order settling tank (1) is also provided with fluid level controller (2).
5. coal mine sewage treatment and reuse technique according to claim 2, is characterized in that: there is overflow groove (6) described settling tank (5) top also peace turn, aeration tank (7) in the middle of sewage flows to from overflow groove (6).
6. coal mine sewage treatment and reuse technique according to claim 2, is characterized in that: the inclined tube in described settling tank (5) is hexagon cellular inclined tube (4).
CN201610018842.9A 2016-01-13 2016-01-13 Coal mine sewage treating and recycling technology Pending CN105461118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610018842.9A CN105461118A (en) 2016-01-13 2016-01-13 Coal mine sewage treating and recycling technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610018842.9A CN105461118A (en) 2016-01-13 2016-01-13 Coal mine sewage treating and recycling technology

Publications (1)

Publication Number Publication Date
CN105461118A true CN105461118A (en) 2016-04-06

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CN201610018842.9A Pending CN105461118A (en) 2016-01-13 2016-01-13 Coal mine sewage treating and recycling technology

Country Status (1)

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CN (1) CN105461118A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108557966A (en) * 2018-03-30 2018-09-21 中冶华天工程技术有限公司 The processing method of coal yard coal-contained wastewater
CN111921719A (en) * 2020-07-08 2020-11-13 甘肃酒钢集团宏兴钢铁股份有限公司 Method for reducing water content of copper concentrate in ore grinding-flotation process

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN2808893Y (en) * 2005-08-04 2006-08-23 中国矿业大学(北京) High-iron high-manganese mine water treatment device
CN101830585A (en) * 2010-05-21 2010-09-15 中国矿业大学(北京) Acid mine water treatment system
CN201678544U (en) * 2010-05-21 2010-12-22 贵州华源环保科技发展有限公司 Waste water treatment for coal mine with high content of ferrimanganic
CN102616957A (en) * 2012-03-28 2012-08-01 兖州煤业股份有限公司 Mine water-inrush treatment multiplex system and treating method thereof
CN104843899A (en) * 2014-12-03 2015-08-19 重庆摩尔水处理设备有限公司 Advanced purification treatment system for mine water

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020009738A (en) * 2000-07-26 2002-02-02 오시덕 Compact System and Device of the Advanced Wastewater Treatment Process
CN2808893Y (en) * 2005-08-04 2006-08-23 中国矿业大学(北京) High-iron high-manganese mine water treatment device
CN101830585A (en) * 2010-05-21 2010-09-15 中国矿业大学(北京) Acid mine water treatment system
CN201678544U (en) * 2010-05-21 2010-12-22 贵州华源环保科技发展有限公司 Waste water treatment for coal mine with high content of ferrimanganic
CN102616957A (en) * 2012-03-28 2012-08-01 兖州煤业股份有限公司 Mine water-inrush treatment multiplex system and treating method thereof
CN104843899A (en) * 2014-12-03 2015-08-19 重庆摩尔水处理设备有限公司 Advanced purification treatment system for mine water

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谢韦 杨红云: "曝气混凝沉淀过滤技术在煤矿矿井废水处理中的运用", 《贵州化工》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108557966A (en) * 2018-03-30 2018-09-21 中冶华天工程技术有限公司 The processing method of coal yard coal-contained wastewater
CN111921719A (en) * 2020-07-08 2020-11-13 甘肃酒钢集团宏兴钢铁股份有限公司 Method for reducing water content of copper concentrate in ore grinding-flotation process

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Application publication date: 20160406