CN104261642A - Treatment method for sterilization, deodorization and recovery of heavy metals of sewage sludge - Google Patents
Treatment method for sterilization, deodorization and recovery of heavy metals of sewage sludge Download PDFInfo
- Publication number
- CN104261642A CN104261642A CN201410462160.8A CN201410462160A CN104261642A CN 104261642 A CN104261642 A CN 104261642A CN 201410462160 A CN201410462160 A CN 201410462160A CN 104261642 A CN104261642 A CN 104261642A
- Authority
- CN
- China
- Prior art keywords
- heavy metal
- liquid
- sludge
- treatment
- sewage
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/08—Treatment of wastewater in the sewer, e.g. to reduce grease, odour
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a treatment method for sterilization, deodorization and recovery of heavy metals of sewage sludge. The treatment method comprises the following steps: performing pretreatment on the sludge; then adding biogas liquid and tobacco residues after extraction of nicotine or solanesol into sewage, and extracting lignin from plant raw materials by adopting a solvent method; then mechanically stirring for 20-40min under the action of electromagnetic waves to obtain mixed liquid; and performing solid-liquid separation on the mixed liquid, and then performing resource utilization and treatment. By using the treatment method disclosed by the invention to perform sludge treatment, comprehensive treatment of'four harms' of the sludge, namely fast sterilization, fast deodorization, deep water removal and effective removal of the heavy metals of the sludge can be realized. The treatment process is short in time, and the time of the whole process from the step that the sludge enters a system to the step that the sludge becomes dry sludge and heavy metal residues is 1-2h; the treatment process is environment-friendly and has no secondary pollution; the treatment process is low in energy consumption and low in cost, and the treatment cost per ton of the sludge to be treated is less than 100 yuan; the dry sludge and the heavy metal residues obtained by treatment can be turned into treasure, thereby realizing comprehensive utilization.
Description
Technical field
The present invention relates to a kind of sludge treatment technique, particularly a kind for the treatment of process sewage sludge deodorization and sterilization being reclaimed to heavy metal.
Background technology
Enter the sewage of sewage work after treatment, external discharge up to standard, but leave mud, this mud not only water content is high, easily corrupt, distributes strong odor, and containing a large amount of microorganism and heavy metal.The high-moisture of mud, strong odor, constitute " four pests " of mud containing a large amount of harmful microorganism and heavy metal, serious harm is caused to ecotope.
Along with China's economy constantly develops, industry is also increasing with the amount of municipal effluent, and the sludge quantity therefore produced also mouth benefit increases.Current, China's municipal sludge Processing Equipment development is seriously delayed, and the municipal sludge overwhelming majority fails to be dealt carefully with and dispose, and forms secondary pollution to environment.
Fundamentally thoroughly to solve the safety of mud, environmental protection, hygienic issues, necessary overall treatment aforesaid " four pests ", and the waste residue obtained after process is carried out recycling.In order to realize the object of sludge treatment, concentrated, the digestion of existing domestic normal employing mud are removed the technique such as water, burning with chemical conditioning, mummification and drying and are processed mud.Wherein sludge incineration facture will consume mass energy, and discharges the obnoxious flavoures such as a large amount of Dioxins, causes secondary pollution to environment; After method of enrichment process, water ratio is still more than 75%, and energy consumption is high, and bacteria content is high; After the process of mummification method, water ratio is still up to 70-80%, and energy consumption is high.The method of all these sludge treatment is harmful or two evils solved in aforementioned " four pests ", though treated, continues to cause harm.
Summary of the invention
The object of the present invention is to provide a kind for the treatment of time short, environmental protection, energy consumption is low, a kind for the treatment of process sewage sludge deodorization and sterilization being reclaimed to heavy metal that cost is low.
For achieving the above object, the invention provides following technical scheme:
Sewage sludge deodorization and sterilization is reclaimed to a treatment process for heavy metal, comprises the following steps:
(1) pre-treatment is carried out to mud, make its water ratio be 90%-95%, obtain sewage;
(2) then add methane liquid to sewage, extracted the tobacco residue of nicotine or Salanesol, and adopt solvent method to extract xylogen from plant material; Then mechanical stirring 20-40min under Electromagnetic Field, obtains mixing liquid; The mass ratio of described methane liquid, tobacco residue, xylogen and sewage is 100-1000: 1-2: 1-2: 1000-10000;
(3) solid-liquid separation carried out to mixing liquid and wash with water, obtaining dewatered sludge slag and filtered liquid;
(4) be used for being processed into organic fertilizer, building materials and/or fuel after dewatered sludge slag being stored; Filtered liquid by lime adjust ph to 6.0-8.5, every cubic metre adds 8-12g CaS and stirs 25-35min to separate out heavy metal, then carrying out mechanical filter separation, obtain clear liquid and heavy metal slag, clear liquid is as cycling use of water reuse to Sewage treatment systems, and heavy metal slag refines and reclaims heavy metal.
As the further scheme of the present invention: the filtered liquid obtained by step (3) replaces the methane liquid in step (2), extracted the tobacco residue of nicotine or Salanesol, and solvent method is adopted to extract xylogen from plant material.
As the further scheme of the present invention: described in step (2), the mass ratio of methane liquid, tobacco residue, xylogen and sewage is 500-600: 1-2: 1-2: 5000-6000.
As the further scheme of the present invention: filtered liquid lime adjust ph is to 7-8, every cubic metre adds 10g CaS and stirs 30min to separate out heavy metal, then mechanical filter separation is carried out, obtain clear liquid and heavy metal slag, clear liquid is as cycling use of water reuse to Sewage treatment systems, and heavy metal slag refines and reclaims heavy metal.
Compared with prior art, the invention has the beneficial effects as follows: use the present invention to carry out sludge treatment, can " four pests " of comprehensive treating process mud, namely mud quick sterilization, fast deodorization, the degree of depth to be anhydrated, effective removal heavy metal.The treatment scheme time is short, and mud is 1-2 hour from the system of entering to the whole flow time becoming dewatered sludge and heavy metal slag; Treating processes environmental protection, non-secondary pollution; Treating processes energy consumption is low, and cost is low, and pending sludge treatment cost per ton is less than 100 yuan; The dewatered sludge that process obtains and heavy metal slag can be turned waste into wealth, comprehensive utilization.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention below in conjunction with the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind for the treatment of process sewage sludge deodorization and sterilization being reclaimed to heavy metal, comprises the following steps:
(5) pre-treatment is carried out to mud, make its water ratio be 90%-95%, obtain sewage;
(6) then add methane liquid to sewage, extracted the tobacco residue of nicotine or Salanesol, and adopt solvent method to extract xylogen from plant material; Then mechanical stirring 20-40min under Electromagnetic Field, obtains mixing liquid; The mass ratio of described methane liquid, tobacco residue, xylogen and sewage is 100-1000: 1-2: 1-2: 1000-10000;
(7) solid-liquid separation carried out to mixing liquid and wash with water, obtaining dewatered sludge slag and filtered liquid;
(8) be used for being processed into organic fertilizer, building materials and/or fuel after dewatered sludge slag being stored; Filtered liquid by lime adjust ph to 6.0-8.5, every cubic metre adds 8-12g CaS and stirs 25-35min to separate out heavy metal, then carrying out mechanical filter separation, obtain clear liquid and heavy metal slag, clear liquid is as cycling use of water reuse to Sewage treatment systems, and heavy metal slag refines and reclaims heavy metal.
Embodiment 2
In the embodiment of the present invention, a kind for the treatment of process sewage sludge deodorization and sterilization being reclaimed to heavy metal, comprises the following steps:
(1) pre-treatment is carried out to mud, make its water ratio be 90%-95%, obtain sewage;
(2) then add methane liquid to sewage, extracted the tobacco residue of nicotine or Salanesol, and adopt solvent method to extract xylogen from plant material; Then mechanical stirring 20-40min under Electromagnetic Field, obtains mixing liquid; The mass ratio of described methane liquid, tobacco residue, xylogen and sewage is 100-1000: 1-2: 1-2: 1000-10000;
(3) solid-liquid separation carried out to mixing liquid and wash with water, obtaining dewatered sludge slag and filtered liquid;
(4) be used for being processed into organic fertilizer, building materials and/or fuel after dewatered sludge slag being stored; Filtered liquid by lime adjust ph to 6.0-8.5, every cubic metre adds 8-12g CaS and stirs 25-35min to separate out heavy metal, then carrying out mechanical filter separation, obtain clear liquid and heavy metal slag, clear liquid is as cycling use of water reuse to Sewage treatment systems, and heavy metal slag refines and reclaims heavy metal.
Embodiment 3
In the embodiment of the present invention, a kind for the treatment of process sewage sludge deodorization and sterilization being reclaimed to heavy metal, comprises the following steps:
(1) pre-treatment is carried out to mud, make its water ratio be 90%-95%, obtain sewage;
(2) then add methane liquid to sewage, extracted the tobacco residue of nicotine or Salanesol, and adopt solvent method to extract xylogen from plant material; Then mechanical stirring 20-40min under Electromagnetic Field, obtains mixing liquid; The mass ratio of described methane liquid, tobacco residue, xylogen and sewage is 100-1000: 1-2: 1-2: 1000-10000;
(3) solid-liquid separation carried out to mixing liquid and wash with water, obtaining dewatered sludge slag and filtered liquid;
(4) be used for being processed into organic fertilizer, building materials and/or fuel after dewatered sludge slag being stored; Filtered liquid by lime adjust ph to 6.0-8.5, every cubic metre adds 8-12g CaS and stirs 25-35min to separate out heavy metal, then carrying out mechanical filter separation, obtain clear liquid and heavy metal slag, clear liquid is as cycling use of water reuse to Sewage treatment systems, and heavy metal slag refines and reclaims heavy metal.
The above embodiment of the present invention is used to carry out sludge treatment, can " four pests " of comprehensive treating process mud, namely mud quick sterilization, fast deodorization, the degree of depth to be anhydrated, effective removal heavy metal.The treatment scheme time is short, and mud is 30-150min from the system of entering to the whole flow time becoming dewatered sludge and heavy metal slag; Treating processes environmental protection, non-secondary pollution; Treating processes energy consumption is low, and cost is low, and pending sludge treatment cost per ton is less than 100 yuan; The dewatered sludge that process obtains and heavy metal slag can be turned waste into wealth, comprehensive utilization.
Claims (4)
1. sewage sludge deodorization and sterilization is reclaimed to a treatment process for heavy metal, it is characterized in that, comprise the following steps:
(1) pre-treatment is carried out to mud, make its water ratio be 90%-95%, obtain sewage;
(2) then add methane liquid to sewage, extracted the tobacco residue of nicotine or Salanesol, and adopt solvent method to extract xylogen from plant material; Then mechanical stirring 20-40min under Electromagnetic Field, obtains mixing liquid; The mass ratio of described methane liquid, tobacco residue, xylogen and sewage is 100-1000: 1-2: 1-2: 1000-10000;
(3) solid-liquid separation carried out to mixing liquid and wash with water, obtaining dewatered sludge slag and filtered liquid;
(4) be used for being processed into organic fertilizer, building materials and/or fuel after dewatered sludge slag being stored; Filtered liquid by lime adjust ph to 6.0-8.5, every cubic metre adds 8-12g CaS and stirs 25-35min to separate out heavy metal, then carrying out mechanical filter separation, obtain clear liquid and heavy metal slag, clear liquid is as cycling use of water reuse to Sewage treatment systems, and heavy metal slag refines and reclaims heavy metal.
2. treatment process sewage sludge deodorization and sterilization being reclaimed to heavy metal according to claim 1, it is characterized in that, the filtered liquid obtained by step (3) replaces the methane liquid in step (2), extracted the tobacco residue of nicotine or Salanesol, and adopts solvent method to extract xylogen from plant material.
3. treatment process sewage sludge deodorization and sterilization being reclaimed to heavy metal according to claim 1 and 2, it is characterized in that, described in step (2), the mass ratio of methane liquid, tobacco residue, xylogen and sewage is 500-600: 1-2: 1-2: 5000-6000.
4. treatment process sewage sludge deodorization and sterilization being reclaimed to heavy metal according to claim 1 and 2, it is characterized in that, filtered liquid by lime adjust ph to 7-8, every cubic metre adds 10g CaS and stirs 30min to separate out heavy metal, then mechanical filter separation is carried out, obtain clear liquid and heavy metal slag, clear liquid is as cycling use of water reuse to Sewage treatment systems, and heavy metal slag refines and reclaims heavy metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410462160.8A CN104261642A (en) | 2014-09-12 | 2014-09-12 | Treatment method for sterilization, deodorization and recovery of heavy metals of sewage sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410462160.8A CN104261642A (en) | 2014-09-12 | 2014-09-12 | Treatment method for sterilization, deodorization and recovery of heavy metals of sewage sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104261642A true CN104261642A (en) | 2015-01-07 |
Family
ID=52153269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410462160.8A Pending CN104261642A (en) | 2014-09-12 | 2014-09-12 | Treatment method for sterilization, deodorization and recovery of heavy metals of sewage sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104261642A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110845103A (en) * | 2019-12-17 | 2020-02-28 | 河南省地质环境规划设计院有限公司 | Heavy metal polluted river bottom mud treatment method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03278900A (en) * | 1990-03-27 | 1991-12-10 | Ishigaki Mech Ind Co | Treatment of sewage sludge |
| CN101353197A (en) * | 2008-09-12 | 2009-01-28 | 南京师范大学 | Use of tobacco and tobacco waste material for processing heavy metal-containing sewerage or sludge |
| CN101851054A (en) * | 2010-06-25 | 2010-10-06 | 湖南多普生环境能源有限公司 | Sludge dewatering conditioner, and preparation method and application thereof |
| CN103723897A (en) * | 2013-12-04 | 2014-04-16 | 刘军亮 | Processing technology for sterilization, deodorization, dehydration and heavy metal removing of sludge |
| CN103771679A (en) * | 2014-01-06 | 2014-05-07 | 浙江工业大学 | Synergetic treatment method of energy-saving dehydration and efficient heavy metal removal of sewage and sludge |
-
2014
- 2014-09-12 CN CN201410462160.8A patent/CN104261642A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03278900A (en) * | 1990-03-27 | 1991-12-10 | Ishigaki Mech Ind Co | Treatment of sewage sludge |
| CN101353197A (en) * | 2008-09-12 | 2009-01-28 | 南京师范大学 | Use of tobacco and tobacco waste material for processing heavy metal-containing sewerage or sludge |
| CN101851054A (en) * | 2010-06-25 | 2010-10-06 | 湖南多普生环境能源有限公司 | Sludge dewatering conditioner, and preparation method and application thereof |
| CN103723897A (en) * | 2013-12-04 | 2014-04-16 | 刘军亮 | Processing technology for sterilization, deodorization, dehydration and heavy metal removing of sludge |
| CN103771679A (en) * | 2014-01-06 | 2014-05-07 | 浙江工业大学 | Synergetic treatment method of energy-saving dehydration and efficient heavy metal removal of sewage and sludge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110845103A (en) * | 2019-12-17 | 2020-02-28 | 河南省地质环境规划设计院有限公司 | Heavy metal polluted river bottom mud treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103723897B (en) | Processing technology for sterilization, deodorization, dehydration and heavy metal removing of sludge | |
| CN110937772A (en) | Method for separating organic/inorganic components from sludge | |
| CN101012096A (en) | Supersonic wave reinforcement sludge anaerobic digestion gas production method | |
| CN108996865B (en) | Pretreatment method and device for biogas production from sludge | |
| CN112474707A (en) | Efficient single-stage washing method and harmless treatment process for fly ash | |
| CN105127190A (en) | Method for repairing hexavalent chromium in chromium polluted soil | |
| CN101514037A (en) | Method for removing low-concentration heavy metal in waste water by sludge absorption | |
| CN103613268A (en) | Sludge dewatering conditioning agent and deep dewatering method thereof | |
| KR101847082B1 (en) | Recycling apparatus of organic waste and, its recycling method | |
| CN109821863B (en) | Method for cooperative treatment of leachate and incineration fly ash | |
| CN204454832U (en) | Cultivating wastewater purification reclaiming system | |
| CN110304786A (en) | The processing water of debirs food waste water is without releasing processing equipment for recycling and its processing method | |
| CN103641286A (en) | Sludge stabilizing method | |
| CN106396308B (en) | Recycling method of residual activated sludge | |
| CN101444716B (en) | Heavy metal bioadsorbent and method for adsorbing heavy metal in electroplating wastewater by same | |
| CN204661496U (en) | A kind of for heat-engine plant desulfurized Wastewater research device | |
| CN113461284A (en) | Municipal sludge treatment method for nitrate-enhanced pyrohydrolysis | |
| CN104261642A (en) | Treatment method for sterilization, deodorization and recovery of heavy metals of sewage sludge | |
| CN102220135A (en) | Leaching liquid for repairing organic phenol-contaminated soil and reparation method of organic phenol-contaminated soil | |
| CN103964660B (en) | The acid wastewater treatment of acid-base neutralisation precipitator method process iron content produces the recovery process of mud | |
| CN111333253A (en) | Method for treating leachate of waste incineration plant | |
| CN112624537B (en) | Method and system for reducing biochemical excess sludge | |
| WO2021117980A1 (en) | Process for biogasifying organic waste with high efficiency through denitrification of digestion wastewater by using digestion gas and preparation of char of digested sludge | |
| CN113072272A (en) | Method for removing heavy metals and recycling phosphorus in municipal sludge | |
| Zhang et al. | Status quo and resource utilization technology of sludge treatment and disposal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |