CN105561778A - Method and device for treating high-concentration odor produced by sludge thermal hydrolysis process - Google Patents

Method and device for treating high-concentration odor produced by sludge thermal hydrolysis process Download PDF

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Publication number
CN105561778A
CN105561778A CN201610133665.9A CN201610133665A CN105561778A CN 105561778 A CN105561778 A CN 105561778A CN 201610133665 A CN201610133665 A CN 201610133665A CN 105561778 A CN105561778 A CN 105561778A
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high concentration
concentration odor
substances
treatment device
biological deodorizing
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谢乙宁
陈剑波
陈佳彬
杨晓健
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Shenzhen Xnb Environmental Technology Co Ltd
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Shenzhen Xnb Environmental Technology Co Ltd
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84—Biological processes
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/485—Sulfur compounds containing only one sulfur compound other than sulfur oxides or hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/52—Hydrogen sulfide
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    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/58—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8603—Removing sulfur compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
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    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8603—Removing sulfur compounds
    • B01D53/8606—Removing sulfur compounds only one sulfur compound other than sulfur oxides or hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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    • B01D53/8603—Removing sulfur compounds
    • B01D53/8612—Hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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    • B01D53/8621—Removing nitrogen compounds
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    • B01D2251/30—Alkali metal compounds
    • B01D2251/304—Alkali metal compounds of sodium
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    • B01D—SEPARATION
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract

The invention provides a method and a device for treating high-concentration odor produced by a sludge thermal hydrolysis process. The method for treating the high-concentration odor comprises the following steps: A, deodorization through catalytic oxidation and desulphurization manner: removing sulfur-containing stinky substances in the odor by virtue of deodorization substances, converting the stinky substances into odorless substances, wherein the deodorization substances comprise ferric oxide, zinc oxide and magnesium oxide; B, deodorization through an alkali washing manner: removing hydrogen sulfide substances by virtue of a detergent; C, biological deodorization: by utilizing the adsorption, absorption and degradation functions of microbial cells for the stinky substances, adsorbing the stinky substances, decomposing the stinky substances into inorganic matters, and finally discharging the odor after reaching standard. The method and the device have the beneficial effects that the odor difficulty such as high concentration, high complexity and various components produced by the sludge organic matters thermal hydrolysis process is successfully solved, and the final treatment effect reaches the grade-A tissue-free emission requirement stipulated in Stinky Pollutant Emission Standard GB14554-1993.

Description

The high concentration odor control method that sludge hot hydrolysis process produces and device
Technical field
The present invention relates to Odor control technical field, particularly relate to high concentration odor control method and the device of the generation of sludge hot hydrolysis process.
Background technology
Along with the development of national urbanization, rubbish in city and specific resistance to filtration more and more severeer, the problem that the foul smell produced in rubbish and sludge handling process affects surrounding environment more and more embodies a concentrated reflection of, the particularly high concentration foul gas of sludge hot hydrolysis process generation, were it not for a feasible treatment process process, odorant certainly will bring severe mud to surrounding enviroment, becomes a kind of public hazards, affect the health of people, even make periphery lung cancer patient increase sharply.
Summary of the invention
The invention provides the high concentration odor control method that a kind of sludge hot hydrolysis process produces, comprise the steps:
A. catalytic oxidation desulfurization deodorizing: remove sulfur-containing foul material in foul smell by deodorizing material, odorant is converted into not sordes matter, and described deodorizing material comprises iron oxide, zinc oxide, magnesia;
B. alkali cleaning deodorizing: remove hydrogen sulfide material by washing agent;
C. biological deodorizing: utilize microbial cell to the absorption of odorant, absorption and degradation function, resolves into inorganic matter, last foul smell qualified discharge after being adsorbed by odorant.
As a further improvement on the present invention, in described steps A, described deodorizing material is as follows according to weight proportion: iron oxide 31-50%, zinc oxide 22-42%, magnesia 5-16%.
As a further improvement on the present invention, in described steps A, described deodorizing material is as follows according to weight proportion: iron oxide 41%, zinc oxide 30%, magnesia 10%.
As a further improvement on the present invention, in described step B, washing agent is NaOH or calcium hydroxide, and washing agent pH value is: 12-13.
As a further improvement on the present invention, in described step C, described microorganism is thiophilic Thiobacillus.
The invention also discloses the high concentration odor treatment device that a kind of sludge hot hydrolysis process produces, comprise catalytic oxidation desulfurization tower, chemical caustic wash tower, biological deodorizing case, described catalytic oxidation desulfurization tower, described chemical caustic wash tower, described biological deodorizing case are communicated with successively, and described biological deodorizing case is provided with gas dis charge openings.
As a further improvement on the present invention, this high concentration odor treatment device also comprise for by drug delivery to the medicine feeding mechanism in chemical caustic wash tower.
As a further improvement on the present invention, described medicine feeding mechanism comprises circulated sprinkling pump, medicine-chest, and described circulated sprinkling pump is connected between described chemical caustic wash tower and described medicine-chest, and described circulated sprinkling pump is used for the medicine in medicine-chest to input in chemical caustic wash tower.
As a further improvement on the present invention, this high concentration odor treatment device also comprises the humidification mechanism for carrying out humidification to described biological deodorizing case inside.
As a further improvement on the present invention, described humidification mechanism comprises humidification pump, adds wet tank, and described humidification pump is connected to described biological deodorizing case and describedly adds between wet tank, and the humidification substance use that described humidification pump is used for adding in wet tank is in biological deodorizing case; This high concentration odor treatment device also comprises blower fan, and described blower fan connects the gas dis charge openings of described biological deodorizing case, and described blower fan is used for the Purge gas in biological deodorizing case to extract out.
The invention has the beneficial effects as follows: the present invention successfully solves high concentration, high complexity, the multicomponent foul smell difficult problem that mud organic substance pyrohydrolysis technique produces, and final treatment effect reaches the one-level uncontrollable discharge requirement that " emission standard for odor pollutants " GB14554-1993 specifies.
Accompanying drawing explanation
Fig. 1 is the high concentration odor treatment apparatus structure schematic diagram that sludge hot hydrolysis process of the present invention produces.
Detailed description of the invention
The invention discloses the high concentration odor control method that a kind of sludge hot hydrolysis process produces, comprise following three steps:
A. catalytic oxidation desulfurization deodorizing: remove sulfur-containing foul material in foul smell by deodorizing material, odorant is converted into not sordes matter, clearance is 50%-80%, catalytic oxidant can recycling, regenerative agent is for containing humid air, and described deodorizing material comprises iron oxide, zinc oxide, magnesia;
B. alkali cleaning deodorizing: remove hydrogen sulfide material by washing agent, washing agent is NaOH or calcium hydroxide, and hydrogen sulfide removal rate is 80%-85%;
C. biological deodorizing: utilize microbial cell to the absorption of odorant, absorption and degradation function, resolves into CO2, H2O, SO4 after being adsorbed by odorant 2+, NO 3+etc. simple inorganic matter, last foul smell qualified discharge.
In described steps A, described deodorizing material is as follows according to weight proportion: iron oxide 31-50%, zinc oxide 22-42%, magnesia 5-16%, and sulfur-bearing odorous substance clearance is 60-80%.
As the preferred embodiments of the present invention, in described steps A, described deodorizing material is as follows according to weight proportion: iron oxide 41%, zinc oxide 30%, magnesia 10%, and sulfur-bearing odorous substance removal effect is 80% of this step admission concentration.
In described step B, washing agent is NaOH or calcium hydroxide, and washing agent pH value is: 12-13, and foul smell removal effect is 85% of this step inlet gas concentration.
In described step C, described microorganism is thiophilic Thiobacillus, and foul smell removal effect is more than 99% of this step admission concentration.
As shown in Figure 1, the invention also discloses the high concentration odor treatment device that a kind of sludge hot hydrolysis process produces, comprise catalytic oxidation desulfurization tower 1, chemical caustic wash tower 2, biological deodorizing case 3, described catalytic oxidation desulfurization tower 1, described chemical caustic wash tower 2, described biological deodorizing case 3 are communicated with successively, and described biological deodorizing case 3 is provided with gas dis charge openings.
This high concentration odor treatment device also comprise for by drug delivery to the medicine feeding mechanism in chemical caustic wash tower 2.
Described medicine feeding mechanism comprises circulated sprinkling pump 7, medicine-chest 8, and described circulated sprinkling pump 7 is connected between described chemical caustic wash tower 2 and described medicine-chest 8, and described circulated sprinkling pump 7 is for inputing to the medicine in medicine-chest 8 in chemical caustic wash tower 2.
Described chemical caustic wash tower 2 delivery outlet is communicated with described medicine-chest 8 input port, thus forms circulation.
This high concentration odor treatment device also comprises the humidification mechanism for carrying out humidification to described biological deodorizing case 3 inside.
Described humidification mechanism comprises humidification pump 5, adds wet tank 6, and described humidification pump 5 is connected to described biological deodorizing case 3 and describedly adds between wet tank 6, described humidification pump 5 for the humidification substance use that will add in wet tank 6 in biological deodorizing case 3.
Described biological deodorizing case 3 delivery outlet is communicated with described wet tank 6 input port that adds, thus forms circulation.
This high concentration odor treatment device also comprises blower fan 4, and described blower fan 4 connects the gas dis charge openings of described biological deodorizing case 3, and described blower fan 4 is for extracting out the Purge gas in biological deodorizing case 3.
In the present invention, catalytic oxidation desulfurization tower 1 is placed with deodorizing material, and catalytic oxidation desulfurization deodorization step completes in catalytic oxidation desulfurization tower 1; Place washing agent in chemistry caustic wash tower 2, alkali cleaning deodorization step completes in chemical caustic wash tower 2; Place microorganism in biological deodorizing case 3, biological deodorizing step completes in biological deodorizing case 3.
The present invention successfully solves high concentration, high complexity, the multicomponent foul smell difficult problem that mud organic substance pyrohydrolysis technique produces, and odor concentration reaches 1,000,000 dimensions, and in foul smell, concentration of hydrogen sulfide reaches 7000-8000mg/m 3, methyl mercaptan concentration reaches 2500-3000mg/m 3, methyl sulfide concentration reaches 1500-2000mg/m 3dimethyl disulfide concentration reaches 1300-1800mg/m3 etc., foul smell composition comprises hydrogen sulfide, ammonia, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide, trimethylamine, styrene etc., and final treatment effect reaches the one-level uncontrollable discharge requirement that " emission standard for odor pollutants " GB14554-1993 specifies.
One-level uncontrollable discharge leading indicator: concentration of hydrogen sulfide reaches 0.03mg/m3, methyl mercaptan concentration reaches 0.004mg/m3, and methyl sulfide concentration reaches 0.03mg/m3, and dimethyl disulfide concentration reaches 0.03mg/m3.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.

Claims (10)

1. a high concentration odor control method for sludge hot hydrolysis process generation, is characterized in that, comprise the steps:
A. catalytic oxidation desulfurization deodorizing: remove sulfur-containing foul material in foul smell by deodorizing material, odorant is converted into not sordes matter, and described deodorizing material comprises iron oxide, zinc oxide, magnesia;
B. alkali cleaning deodorizing: remove hydrogen sulfide material by washing agent;
C. biological deodorizing: utilize microbial cell to the absorption of odorant, absorption and degradation function, resolves into inorganic matter, last foul smell qualified discharge after being adsorbed by odorant.
2. high concentration odor control method according to claim 1, is characterized in that, in described steps A, described deodorizing material is as follows according to weight proportion: iron oxide 31-50%, zinc oxide 22-42%, magnesia 5-16%.
3. high concentration odor control method according to claim 2, is characterized in that: in described steps A, and described deodorizing material is as follows according to weight proportion: iron oxide 41%, zinc oxide 30%, magnesia 10%.
4. the high concentration odor control method according to any one of claims 1 to 3, is characterized in that: in described step B, and washing agent is NaOH or calcium hydroxide, and washing agent pH value is: 12-13.
5. high concentration odor control method according to claim 4, is characterized in that: in described step C, described microorganism is thiophilic Thiobacillus.
6. the high concentration odor treatment device of a sludge hot hydrolysis process generation, it is characterized in that: comprise catalytic oxidation desulfurization tower (1), chemical caustic wash tower (2), biological deodorizing case (3), described catalytic oxidation desulfurization tower (1), described chemical caustic wash tower (2), described biological deodorizing case (3) are communicated with successively, and described biological deodorizing case (3) is provided with gas dis charge openings.
7. high concentration odor treatment device according to claim 6, is characterized in that: this high concentration odor treatment device also comprise for by drug delivery to the medicine feeding mechanism in chemical caustic wash tower (2).
8. high concentration odor treatment device according to claim 7, it is characterized in that: described medicine feeding mechanism comprises circulated sprinkling pump (7), medicine-chest (8), described circulated sprinkling pump (7) is connected between described chemical caustic wash tower (2) and described medicine-chest (8), and described circulated sprinkling pump (7) is for inputing to the medicine in medicine-chest (8) in chemical caustic wash tower (2).
9. high concentration odor treatment device according to claim 6, is characterized in that: this high concentration odor treatment device also comprises the humidification mechanism for carrying out humidification to described biological deodorizing case (3) inside.
10. high concentration odor treatment device according to claim 9, it is characterized in that: described humidification mechanism comprises humidification pump (5), adds wet tank (6), described humidification pump (5) is connected to described biological deodorizing case (3) and describedly adds between wet tank (6), and described humidification pump (5) will be for adding humidification substance use in wet tank (6) in biological deodorizing case (3); This high concentration odor treatment device also comprises blower fan (4), described blower fan (4) connects the gas dis charge openings of described biological deodorizing case (3), and described blower fan (4) is for extracting out the Purge gas in biological deodorizing case (3).
CN201610133665.9A 2016-03-09 2016-03-09 Method and device for treating high-concentration odor produced by sludge thermal hydrolysis process Pending CN105561778A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106621791A (en) * 2016-12-29 2017-05-10 湖南军信污泥处置有限公司 Method and device for treating high-concentration foul gas produced by sludge thermal-hydrolysis
CN112607982A (en) * 2020-12-16 2021-04-06 湖南军信环保股份有限公司 Sludge pyrohydrolysis system and sludge anaerobic digestion system
CN115893711A (en) * 2022-10-26 2023-04-04 中国石油化工股份有限公司 Method for treating organic sulfur in fracturing flow-back fluid suitable for oil and gas field

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