CN105254072A - Sewage and wastewater treatment device and method - Google Patents

Sewage and wastewater treatment device and method Download PDF

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Publication number
CN105254072A
CN105254072A CN201510743517.4A CN201510743517A CN105254072A CN 105254072 A CN105254072 A CN 105254072A CN 201510743517 A CN201510743517 A CN 201510743517A CN 105254072 A CN105254072 A CN 105254072A
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CN
China
Prior art keywords
hydrogen peroxide
sewage
tubular
aeration
mix reactor
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Pending
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CN201510743517.4A
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Chinese (zh)
Inventor
罗振
刘志东
於恩洪
吕子钧
陈涛
徐斌鑫
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Environmental Protection Technology Co Ltd Wuxi New Town
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Environmental Protection Technology Co Ltd Wuxi New Town
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Priority to CN201510743517.4A priority Critical patent/CN105254072A/en
Publication of CN105254072A publication Critical patent/CN105254072A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a sewage and wastewater treatment device comprising an acid ferrous sulfate adding system, a water feeding pump, an oxydol adding system, a tubular mixing reactor, a stay water tank, an aeration tank and an aeration system. The invention further discloses a sewage and sewage treatment method comprising the steps of mixing inflow water and acid ferrous sulfate solution together under the action of an impeller of the water feed pump, and mixing a mixture from the former step with oxydol through the tubular mixing reactor to generate Fenton catalytic oxidation reaction; and entering mixed reaction effluent into the aeration tank for aeration after passing through the stay water tank to finish the Fenton catalytic oxidation reaction. The device and the method disclosed by the invention are suitable for upgrading emission reduction of sewage and wastewater, and have the advantages of short reaction time, high treatment efficiency, civil engineering conservation and simple and convenient operation.

Description

A kind of sewage and waste water treatment device and method
Technical field
The present invention relates to environmental engineering stain disease and carry mark reduction of discharging field, be specially sewage and waste water treatment device and method.
Background technology
In recent years, water pollutions becomes the No.1 pollution treatment difficult problem of China, and the present situation that the water contamination accident how broken out makes the public serious to China's water pollutions has had personal cognition.At present, national river IV ~ V class and bad V class pollute accounting nearly 30%, and groundwater pollution is serious, and trade effluent repeating utilization factor is less than 30%, and town sewage regeneration is less than 10%.Along with the aggravation of growth in the living standard and pollution, people constantly promote the upgrading of water treatment demand to the raising of water quality requirement.According to the planning of Chinese Ministry of Environmental Protection, the sewage work existing Effluent criteria being secondary all carried and was designated as one-level by China " 12 " period; The sewage disposal plant effluent standard of major river valley will be promoted to one-level A, and it is extremely urgent that mark transformation is proposed in waste water control.
Fenton (Fenton) oxidation technology is a kind of dependence hydrogen peroxide (H 2o 2) at ferrous ion (Fe 2+) produce hydroxyl radical free radical (OH) under katalysis and carry out the organic water technology of oxidation removal, simple with its oxidation mechanism, speed of response fast, can produce the incomparable advantage of other general chemical oxidation process such as flocculation and enjoy favor.The optimum PH range of Fenton's reaction is under acidic conditions, and speed of response is fast, fully can mix under specific pipeline condition, and Fenton catalytic oxidation occurs.
Existing common Fenton catalytic oxidation reaction device has feature clearly, has a Fenton catalyzed oxidation tank or oxidizing tower exactly, is equipped with ferrous sulfate medicine system and hydrogen peroxide medicine system.Simultaneously also be furnished with whipping appts or weak aeration mixing device, there is certain energy consumption and uneconomical, cause insufficient utilization of hydrogen peroxide and ferrous ion, increase and decrease running cost simultaneously.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of sewage and waste water treatment device and method, and this device and method can make full use of hydrogen peroxide and ferrous ion, saves energy consumption, reduces costs.
A kind of sewage and waste water treatment device disclosed by the invention, comprise connect successively intake pump, tubular-mix reactor, stop pond and aeration tank, described tubular-mix reactor is provided with hydrogen peroxide chemicals dosing plant, aeration tube is provided with bottom described aeration tank, one end that aeration tube is positioned at bottom aeration tank is provided with aeration head, and the aeration tube the other end is connected with gas blower.Air is injected to aeration tank by gas blower and aeration tube.
Described sewage and waste water treatment device also comprises acid ferrous sulfate medicine system and hydrogen peroxide medicine system, described acid ferrous sulfate medicine system comprises dosing volume pump and the medicament storage tank with pH probe, and described acid ferrous sulfate medicine system dosing pipe is connected to intake pump and water inlet pipe connection; Described hydrogen peroxide medicine system comprises dosing volume pump and medicament storage tank, and the dosing volume pump of described hydrogen peroxide medicine system is connected with hydrogen peroxide chemicals dosing plant by dosing pipe.
Described tubular-mix reactor outlet stops basin bottom by pipeline access.
The caliber of described hydrogen peroxide chemicals dosing plant is less than the caliber of tubular-mix reactor, and hydrogen peroxide chemicals dosing plant is arranged on 1/8 place and 1/2 place of tubular-mix reactor respectively.Current produce pressure drop after hydrogen peroxide chemicals dosing plant, are convenient to hydrogen peroxide medicine system by dosing pipe dosing.Two grade hydrogen peroxide chemicals dosing plants are to ensure making full use of of hydrogen peroxide, improve catalyzed reaction efficiency.
Described stop pond and aeration tank are Round Sump, save civil engineering and space.
The method of the device process stain disease of technique scheme is utilized to comprise the following steps:
1) acid copperas solution is prepared; Dilution hydrogen peroxide.
2) acid copperas solution and Yuan Shui (flowing into the water of first processing unit of water treatment plant) are injected intake pump according to the volume ratio of 1:80 ~ 125, through impeller action mixing in intake pump, produce mixing water.
3) mixing water flows into tubular-mix reactor, injects the hydrogen peroxide after dilution by hydrogen peroxide chemicals dosing plant to tubular-mix reactor; The caliber of hydrogen peroxide chemicals dosing plant is less than the caliber of tubular-mix reactor, mixing water is by producing pressure drop and waterpower turbulent flow during hydrogen peroxide chemicals dosing plant, under the mixing effect of tubular-mix reactor, there is Fenton oxidation with the hydrogen peroxide from hydrogen peroxide chemicals dosing plant to react, and then catalyzed degradation organism.
4) water that reflects that reaction obtains in tubular-mix reactor flows into stop pond, for improving medicament utilising efficiency and ensureing Fenton oxidation effect, stops 5 ~ 8min; Reaction water outlet is overflowed and is stopped inflow aeration tank, pond, and at aeration tank aeration 15 ~ 20min, under the condition that iron ion contact at air, oxidation generation has the ironic hydroxide (Fe (OH) of the nascent state of adsorption-flocculation effect 3), strengthen removal effect further; Then flow out, treat a next sewage disposal operation process.
The acid copperas solution pH value of described step 1) preparation is less than or equal to 3, and the hydrogen peroxide massfraction after described dilution is 2% ~ 5%.
Sewage and waste water treatment device of the present invention and method decrease the workload in the use of material and project installation, reduce infrastructure investment cost; Owing to saving pot type or pond body formula mixed reactor, energy consumption equipment investment and maintenance cost are saved.Device involved in the present invention or device control are conveniently simultaneously, and the working efficiency that can improve personnel saves human cost.Apparatus and method of the present invention are applicable to stain disease and propose mark reduction of discharging, and the reaction times is short, and processing efficiency is high.
Accompanying drawing explanation
Fig. 1 is sewage and waste water treatment device connection diagram of the present invention.In figure, arrow represents the sewage of process or adds the flow direction of solution.
Embodiment
Below in conjunction with accompanying drawing, a kind of sewage and waste water treatment device propose the present invention and method are described in detail.
As shown in Figure 1, sewage and waste water treatment device of the present invention, comprise connect successively intake pump 1, tubular-mix reactor 2, stop pond 7 and aeration tank 8, tubular-mix reactor 2 exports and stops bottom pond 7 by pipeline access, is connected between each device by hydraulic pipe or aerated conduit.Tubular-mix inside reactor has static mixing reaction unit, tubular-mix reactor 2 is provided with hydrogen peroxide chemicals dosing plant 3, the caliber of hydrogen peroxide chemicals dosing plant 3 is less than the caliber of tubular-mix reactor 2, and hydrogen peroxide chemicals dosing plant 3 is preferably mounted at 1/8 place and 1/2 place of tubular-mix reactor 2.Be provided with aeration tube bottom aeration tank 8, aeration tube one end be positioned at bottom aeration tank 8 is provided with aeration head 6, and the aeration tube the other end is connected with gas blower 4.Stop pond 7 and aeration tank 8 are Round Sump.
Sewage and waste water treatment device also comprises acid ferrous sulfate medicine system 9 and hydrogen peroxide medicine system 10, acid ferrous sulfate medicine system 9 comprises dosing volume pump and the medicament storage tank with pH probe, and acid ferrous sulfate medicine system 9 is connected to intake pump 1 and water inlet pipe connection; Hydrogen peroxide medicine system 10 comprises dosing volume pump and medicament storage tank, and the dosing volume pump of hydrogen peroxide medicine system 10 is connected with hydrogen peroxide chemicals dosing plant 3 by dosing pipe.
Utilize said apparatus to carry out the method for stain disease process, comprise the following steps:
1) by a certain percentage clear water or reuse water, acid and ferrous sulfate are hybridly prepared into acid copperas solution in advance, the acid copperas solution be mixed with is stored in the medicament storage tank of ferrous sulfate medicine system 9, and its pH value of acid copperas solution be mixed with is less than or equal to 3.Be stored in hydrogen peroxide medicine system 10 after being diluted by a certain percentage by industrial hydrogen peroxide with clear water or reuse water in advance, the hydrogen peroxide massfraction after dilution is 2% ~ 5%, preferably 2%, 3%, 4% or 5%.
2) according to former water flooding velocity, acid copperas solution injects the water inlet pipe of intake pump 1 according to the ratio of 1:80 ~ 125 according to the volume ratio with former water through the dosing volume pump of ferrous sulfate medicine system 9, acid copperas solution mixes through impeller action with entered former water in intake pump 1.
3) mixed flow produced after mixing enters tubular-mix reactor 2 through pipeline, and wherein inlet channel is connected by flange with tubular-mix reactor 2.Caliber due to hydrogen peroxide chemicals dosing plant 3 is less than the caliber of tubular-mix reactor, mixing water can produce pressure drop and waterpower turbulent flow by during the hydrogen peroxide chemicals dosing plant 3 that is connected with hydrogen peroxide medicine system 10 dosing pipe, mixing water mixes with the hydrogen peroxide added, generating portion Fenton oxidation catalytic reaction degradation of organic substances.The water outlet of hydrogen peroxide chemicals dosing plant 3 enters tubular-mix reactor 2 and abundant Fenton oxidation catalytic reaction degradation of organic substances occurs.
4) the reaction water outlet of tubular-mix reactor 2 enters through pipeline and stops pond 7, stops 5 ~ 8min in stop pond 7.Under hydraulic action, hybrid reaction water outlet overflows to aeration tank 8, at aeration tank 1 aeration 15 ~ 20min at stop top, pond 7.Then flow out, treat a next sewage disposal operation process.
Embody rule approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.

Claims (7)

1. a sewage and waste water treatment device, it is characterized in that, comprise connect successively intake pump (1), tubular-mix reactor (2), stop pond (7) and aeration tank (8), described tubular-mix reactor (2) is provided with hydrogen peroxide chemicals dosing plant (3), bottom, described aeration tank (8) is provided with aeration tube, one end that aeration tube is positioned at bottom, aeration tank (8) is provided with aeration head (6), and the aeration tube the other end is connected with gas blower (4).
2. sewage and waste water treatment device according to claim 1, it is characterized in that, described sewage and waste water treatment device also comprises acid ferrous sulfate medicine system (9) and hydrogen peroxide medicine system (10), described acid ferrous sulfate medicine system (9) comprises dosing volume pump and the medicament storage tank with pH probe, and described acid ferrous sulfate medicine system (9) is connected to intake pump (1) and water inlet pipe connection; Described hydrogen peroxide medicine system (10) comprises dosing volume pump and medicament storage tank, and the dosing volume pump of described hydrogen peroxide medicine system (10) is connected with hydrogen peroxide chemicals dosing plant (3) by dosing pipe.
3. sewage and waste water treatment device according to claim 1, is characterized in that the outlet of described tubular-mix reactor (2) stops bottom, pond (7) by pipeline access.
4. sewage and waste water treatment device according to claim 1, it is characterized in that the caliber of described hydrogen peroxide chemicals dosing plant (3) is less than the caliber of tubular-mix reactor (2), hydrogen peroxide chemicals dosing plant (3) is arranged on 1/8 place and 1/2 place of tubular-mix reactor (2) respectively.
5. sewage and waste water treatment device according to claim 1, is characterized in that, described stop pond (7) and aeration tank (8) are Round Sump.
6. utilize the method for the sewage and waste water treatment device process stain disease according to Claims 1-4 Arbitrary Term, it is characterized in that, comprise the following steps:
1) acid copperas solution is prepared; Dilution hydrogen peroxide;
2) acid copperas solution and former water injected intake pump (1) according to the volume ratio of 1:80 ~ 125 and mix, producing mixing water;
3) mixing water flows into tubular-mix reactor (2), injects the hydrogen peroxide after dilution by hydrogen peroxide chemicals dosing plant (3) to tubular-mix reactor (2); Mixing water and hydrogen peroxide react in tubular-mix reactor (2);
4) water that reflects that reaction obtains in tubular-mix reactor (2) flows into stop pond (7), stops 5 ~ 8min; Reaction water outlet is overflowed and is stopped pond (7) inflow aeration tank (8), stops 15 ~ 20min, then flow out, treat a next sewage disposal operation process in aeration tank (8).
7. stain disease treatment process according to claim 6, is characterized in that, the acid copperas solution pH value of described step 1) preparation is less than or equal to 3, and the hydrogen peroxide massfraction after described dilution is 2% ~ 5%.
CN201510743517.4A 2015-11-05 2015-11-05 Sewage and wastewater treatment device and method Pending CN105254072A (en)

Priority Applications (1)

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CN201510743517.4A CN105254072A (en) 2015-11-05 2015-11-05 Sewage and wastewater treatment device and method

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Application Number Priority Date Filing Date Title
CN201510743517.4A CN105254072A (en) 2015-11-05 2015-11-05 Sewage and wastewater treatment device and method

Publications (1)

Publication Number Publication Date
CN105254072A true CN105254072A (en) 2016-01-20

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101734779A (en) * 2008-11-17 2010-06-16 杭州生源医疗保健技术开发有限公司 Method for preparing Fenton reagent on site for treating waste water
JP4527896B2 (en) * 2001-03-26 2010-08-18 オルガノ株式会社 Wastewater treatment equipment
CN102390905A (en) * 2011-08-03 2012-03-28 西安瑞美德水业科技有限公司 Advanced treatment device and method of micropolluted organic sewage
CN202643482U (en) * 2012-05-05 2013-01-02 合肥志宇环保科技有限公司 Fenton and iron-carbon micro-electrolysis combined catalytic oxidation device for wastewater
CN103910427A (en) * 2014-03-21 2014-07-09 深圳清华大学研究院 Fenton reaction system and method for treating organic pollutants in waste water by Fenton reaction system
CN205241394U (en) * 2015-11-05 2016-05-18 无锡市新都环保科技有限公司 Dirty effluent treatment plant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4527896B2 (en) * 2001-03-26 2010-08-18 オルガノ株式会社 Wastewater treatment equipment
CN101734779A (en) * 2008-11-17 2010-06-16 杭州生源医疗保健技术开发有限公司 Method for preparing Fenton reagent on site for treating waste water
CN102390905A (en) * 2011-08-03 2012-03-28 西安瑞美德水业科技有限公司 Advanced treatment device and method of micropolluted organic sewage
CN202643482U (en) * 2012-05-05 2013-01-02 合肥志宇环保科技有限公司 Fenton and iron-carbon micro-electrolysis combined catalytic oxidation device for wastewater
CN103910427A (en) * 2014-03-21 2014-07-09 深圳清华大学研究院 Fenton reaction system and method for treating organic pollutants in waste water by Fenton reaction system
CN205241394U (en) * 2015-11-05 2016-05-18 无锡市新都环保科技有限公司 Dirty effluent treatment plant

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Application publication date: 20160120

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