CN204569690U - The treatment unit of the synchronous deep dehydration of a kind of river bottom mud and heavy metals removal - Google Patents
The treatment unit of the synchronous deep dehydration of a kind of river bottom mud and heavy metals removal Download PDFInfo
- Publication number
- CN204569690U CN204569690U CN201520215911.6U CN201520215911U CN204569690U CN 204569690 U CN204569690 U CN 204569690U CN 201520215911 U CN201520215911 U CN 201520215911U CN 204569690 U CN204569690 U CN 204569690U
- Authority
- CN
- China
- Prior art keywords
- bed mud
- mud
- treatment unit
- pond
- conditioner
- 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.)
- Expired - Fee Related
Links
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model relates to the treatment unit of the synchronous deep dehydration of a kind of river bottom mud and heavy metals removal.The device that object is to provide has compact construction, process stabilizing, the advantage such as low, easy and simple to handle and high-efficiency environment friendly of working cost.Technical scheme is: the treatment unit of the synchronous deep dehydration of a kind of river bottom mud and heavy metals removal, comprises Controlling System; It is characterized in that: this treatment unit also comprises the bed mud storage pool, bed mud conditioner, settling tank and the filtering equipment that are communicated with successively by transferpump group, sewage sludge storage pond is connected after pond prepared by medicament and is accessed bed mud conditioner again, and the liquid that settling tank and filtering equipment produce also is communicated with outside Sewage treatment systems respectively by reflux pump group; Described Controlling System is prepared pond, bed mud storage pool, bed mud conditioner, settling tank and filtering equipment respectively by data line and is carried out control signal transmission with mud storage pool, medicament.
Description
Technical field
The utility model relates to city and to have stable political situation field of environmental engineering, specifically a kind for the treatment of unit for the synchronous deep dehydration of river bottom mud and heavy metals removal.
Background technology
Bed mud refers to the settling of alluvial in bottom of river channel, and because bed mud source is complicated, often there is all kinds of pollution, particularly heavy metal contamination, due to its toxicity and persistence, is pollute a most serious class in bed mud in river; And bed mud is benthic main life area and food source, heavy metal in bed mud causes evil to water body and bottom-dwelling intoxicating directly or indirectly, and has influence on other aquatic ecosystem safety and human health further by approach such as biomagnification, biologic chain amplifications.Zinc as human body excess intake then there will be gastro-enteritis, anaemia, hypertension, coronary heart disease, and excess intake chromium can cause that liver kidney is impaired, nasal perforation, lung cancer etc.
The Treatment process of river course heavy metal polluted bed mud, different according to form of construction work, original position can be divided into administer and dystopy improvement.Original position is administered and is referred to that bed mud is not dredged and directly adopts solidification or the means such as biological drip washing, biomagnification to eliminate the pollution behavior of bed mud, and it is then by row relax again after Sediment Dredging that dystopy is administered, thus eliminates the harm of its heavy metal contamination to environment.
The efficiency of original position pollution administration bed mud is generally low than the efficiency of dystopy pollution administration bed mud, technical process control difficulty, in bed mud, Pollutant distribution is uneven, for heavy metal contaminants, its toxicity can not thoroughly be eliminated by in-situ treatment, and therefore original position Treatment process is not widely used in Practical Project so far yet.
Dystopy Treatment process mainly comprises Physical, chemical method and biological process etc.Physical refers to the Leaching being reduced heavy metal in bed mud by curing/stabilizing, and adopt the methods such as landfill to carry out the ultimate disposal of bed mud, because the Physicals such as curing/stabilizing can not effectively remove heavy metal in bed mud, bed mud heavy metal removing truly can not be realized, thus limit its recycling, therefore follow-up ultimate disposal often adopts landfill disposal, a large amount of valuable landfill yard resource will be taken, simultaneously because the bottom-mud dewatering performance after process is not improved, there is the problems such as water ratio is higher, to directly have influence on landfill yard safety and environmental risk, therefore this technology is difficult to promote in Practical Project.
Chemical method mainly refers to utilize sulfuric acid, nitric acid, EDTA etc. as eluent, heavy metal in bed mud is carried out drip washing removal, chemical leaching technology then needs to consume a large amount of drip washing medicaments, leacheate intractability is large, the drip washing medicament rate of recovery is low, and comprehensive repair costly, easily causes secondary pollution problem, therefore, this technology is also difficult to through engineering approaches and applies.
Biological process is that the heavy metal in bed mud is transformed into the lower hypotoxicity form of validity or drip washing lixiviate and reaches the object of remedying sludge by the vital movement of applying biological body (microorganism, protozoon or plant).Mainly comprise microorganism remediation, phytoremediation and plant-microorganism combine d bioremediation etc., wherein remarkable with microorganism remediation technical study achievement again.
Meanwhile a dehydration difficult problem for river training bed mud also seriously constrains its rationally disposal and comprehensive utilization.River bottom mud is generally in the majority with fine particle silty clay, not easily dehydration and drying under field conditions (factors), at present conventional dewatering has: natural mummification, draining mummification, mechanical dehydration, pre-press-dehydrating, the dehydration of geotechnological pipe racks, bottom discharge method, electroosmose process and add the methods such as solidifying agent, it is large to there is bed mud stockyard floor space in traditional natural mummification dewatering, dewatering time long (reaching 1 ~ 2 year even more than 5 years), the shortcomings such as costs and poor dehydration results, are difficult to meet the demand that river bottom mud realizes fast dewatering; Adopt mechanical dehydration method, a large amount of flocculation agent need be added, conventional flocculation agent has inorganic flocculating agent (as PB1 gene, poly-ferric chloride etc.) and organic floculant (as cationic polyacrylamide PAM etc.), although significantly can improve the dewatering of bed mud, the use of a large amount of flocculation agent also can produce hostile environment impact to the ultimate disposal of bed mud.Therefore, no matter be traditional natural air drying dehydration or mechanical dehydration, still there is the pollution problems such as heavy metal in the bed mud after dehydration, limits the final safe disposal of river training bed mud.
Comprehensive above analysis, separate often for being subject to the heavy metal removing of heavy metal contamination river bottom mud and processed technology or technique at present, lack collaborative and contact each other, reaching final purpose often needs two or more technique to carry out combination treatment, add cost and the difficulty of sludge handling, limit the prospect of through engineering approaches application.
Utility model content
The purpose of this utility model overcomes the deficiency in above-mentioned background technology, the treatment unit of the synchronous deep dehydration of a kind of river bottom mud and heavy metals removal is provided to design, above-mentioned two kinds of functions synchronously can be realized in same treating processes, this device has compact construction, process stabilizing, the advantage such as low, easy and simple to handle and high-efficiency environment friendly of working cost.
The technical scheme that the utility model provides is:
A treatment unit for the synchronous deep dehydration of river bottom mud and heavy metals removal, comprises Controlling System; It is characterized in that: this treatment unit also comprises the bed mud storage pool, bed mud conditioner, settling tank and the filtering equipment that are communicated with successively by transferpump group, sewage sludge storage pond is connected after pond prepared by medicament and is accessed bed mud conditioner again, and the liquid that settling tank and filtering equipment produce also is communicated with outside Sewage treatment systems respectively by reflux pump group; Described Controlling System is prepared pond, bed mud storage pool, bed mud conditioner, settling tank and filtering equipment respectively by data line and is carried out control signal transmission with mud storage pool, medicament.
Pond prepared by described medicament and bed mud conditioner is also configured with nutrition agent adding equipment respectively.
Pond prepared by described medicament and bed mud conditioner is also configured with aerator respectively.
Described reflux pump group is be communicated with filtering equipment and water reflux pump group after the filter of Sewage treatment systems and the supernatant liquor reflux pump group being communicated with bed mud conditioner and Sewage treatment systems respectively.
The beneficial effects of the utility model are:
(1) by after dehydration, the water ratio of river bottom mud, lower than 60%, makes river bottom mud (river bottom mud water ratio is in 95%) decrement more than 85%;
(2) can heavy metal in simultaneous removing bed mud, Heavy Metals clearance is more than 70%;
(3) main raw material prepared by medicament is municipal sludge, achieves the treatment of wastes with processes of wastes against one another;
(4) treatment unit level of automation is high, easy and simple to handle;
(5) treatment process is simple, and production cost is lower;
(6) treatment unit that the utility model provides all is made up of conventional equipment, thus simple, the technology maturation of structure, and cost of investment is not high, also helps and applies.
Accompanying drawing explanation
Fig. 1 is the principle of work schematic diagram for the treatment of unit described in the utility model.
Embodiment
The treatment unit of the synchronous deep dehydration of the river bottom mud that the utility model provides and heavy metals removal, same treating processes in set of device can achieve above-mentioned two kinds of objects, river bottom mud after treatment water ratio lower than 60%, and synchronously can realize the removal of bed mud heavy metal, clearance is more than 70%, running cost is cheap, the rear bed mud water ratio of process is low, heavy metal content significantly reduces, be convenient to follow-up comprehensive utilization and ultimate disposal, therefore there is good environmental benefit and economic benefit.
The utility model is described in further detail below, but the utility model is not limited to following examples.
As shown in Figure 1, the treatment unit of the synchronous deep dehydration of river bottom mud and heavy metals removal, comprise the bed mud storage pool 1, bed mud conditioner 2, settling tank 5, the filtering equipment 6 that are communicated with successively by transferpump group 8, sewage sludge storage pond 3 is connected after pond 4 prepared by medicament and is accessed bed mud conditioner again, and Controlling System 11 prepares pond respectively by data line (represented by dashed line in figure) with bed mud storage pool, bed mud conditioner, sewage sludge storage pond, medicament, control signal transmission is carried out in settling tank, filtering equipment conducting.
The supernatant liquor that settling tank produces is delivered to outside Sewage treatment systems 7 by supernatant liquor reflux pump group 10; After the filter of described filtering equipment, water is then delivered to outside Sewage treatment systems by water reflux pump group 9 after filter.
River bottom mud A is delivered in described bed mud storage pool and deposits temporarily; Described storage pool can be square or circular configuration, and storage pool inwall is through rotproofing.
Municipal sludge B is delivered in described sewage sludge storage pond and deposits temporarily; Described storage pool can be square or circular configuration, and storage pool inwall is through rotproofing.
Described medicament is prepared pond and is nursed one's health medicament (be included in municipal sludge and carry out microbial inoculant and cultivation) for the preparation of bed mud, add nutrition agent by the first nutrition agent adding equipment 4-1 to mud in pond simultaneously, and carry out aeration by the first aerator 4-2, to meet the oxygen amount required for aerobic microbiological; Described medicament is prepared pond and be can be circle or square structure, and medicament prepares the inwall in pond through rotproofing.
Described bed mud conditioner is used for nursing one's health bed mud (river bottom mud), in bed mud conditioner, add nutrition agent by the second nutrition agent adding equipment 2-1 simultaneously, and carry out aeration by the second aerator 2-2, with the oxygen amount met required for aerobic functional microorganism and the needs fully contacted with medicament and bed mud; Described bed mud conditioner can be circle or square structure, and the inwall of bed mud conditioner is through rotproofing.
Described nutrition agent adding equipment is conventional equipment, comprises the assemblies (omitting these assemblies in figure) such as fresh feed pump, medicine storage pool, dosing volume pump, liquidometer, Controlling System; Wherein, medicine storage pool is provided with stirrer, liquidometer, liquid level alarm and valve; Medicine storage pool is generally stainless steel; The impeller of agitator and axle are generally steel lining glue material, and anticorrosion grade is F.
Described aerator is conventional equipment, comprises air compressor machine and aerated conduit (omitting in figure); Be delivered to by aerated conduit the aerator that bed mud conditioner and medicament prepared in pond after air is compressed by air compressor machine and carry out aeration.
Described settling tank is used for carrying out precipitation process to the mud after conditioning.
Described filtering equipment be used for processed is carried out to bed mud, dehydration after produce water ratio lower than 60% bed mud C; Described filtering equipment is conventional equipment, general employing barrier film plate-and-frame filter press, and its filter pressure is preferably 0.8-1.2MPa, and diaphragm pressing pressure is preferably 2.0MPa, band automatic blowing function; Filter plate material is modification high-quality Reinforced Polypropylene and adopts variable cross-section design, and filtration fraction structure adopts plum blossom-shaped taper round dot structure, effectively can reduce filtration resistance; Frame is then chosen quality steel plate and is welded and do rotproofing; Said modules is omitted in figure.
The transferpump group of being furnished with conveying mud between pond, settling tank, filtering equipment respectively prepared by described bed mud storage pool, bed mud conditioner, sewage sludge storage pond, medicament; Described transferpump group is conventional equipment, comprises slush pump, under meter, pipeline and valve (omitting in figure).
The supernatant liquor that described settling tank produces is delivered to outside Sewage treatment systems 7 by supernatant liquor reflux pump group; After after described filter, water reflux pump group is used for the filter produced by filtering equipment, water is delivered to outside Sewage treatment systems; Described supernatant liquor reflux pump group and the rear water reflux pump group of filter are conventional equipment, comprise conveying pump, pipeline and valve (omitting these assemblies in figure).
In addition, this treatment unit is the configurable Controlling System for controlling above-mentioned each component working also, and this Controlling System can be hand controller (as manual switch) or automatic control system (PLC), selectes as required.
The algorithm of this treatment unit is as follows:
(1) medicament preparation:
1. prepare in pond to medicament and input municipal sludge, then add the nutrition agent of municipal sludge weight 0.5-2%; Described interpolation nutrition agent is conventional microbial nutrition agent (sewage disposal microbial nutrition agent; Lower and the buyable of cost obtains);
2. the sludge aeration after 1. processing step is cultivated, residence time 1-3 days;
(2) bed mud conditioning:
1. the medicament configured through step (1) is pumped into bed mud conditioner, medicament adding proportion is the 10%-30% of bed mud (i.e. river bottom mud) weight;
2. in bed mud after 1. step is processed, add the nutrition agent of bed mud weight 0.5-2%; Described interpolation nutrition agent is conventional microbial nutrition agent (sewage disposal microbial nutrition agent; Lower and the buyable of cost obtains);
3. the sludge aeration after 2. processing step is cultivated, residence time 1-3 days;
(3) bed mud precipitation:
By the bed mud precipitation 5-10h after step (2) process;
(4) processed:
1. the supernatant liquor after step (3) process is delivered to outside Sewage treatment systems;
2. the bed mud after step (3) process carries out processed; Filtering equipment can be adopted to dewater, and the recommendation press filtration pressure of described filtering equipment is 0.8-1.2MPa, and recommendation time of filter pressing is 2-3h;
3. after the filter that produces of described filtering equipment, water is delivered to outside Sewage treatment systems.
Claims (4)
1. a treatment unit for the synchronous deep dehydration of river bottom mud and heavy metals removal, comprises Controlling System (11); It is characterized in that: this treatment unit also comprises the bed mud storage pool (1), bed mud conditioner (2), settling tank (5) and the filtering equipment (6) that are communicated with successively by transferpump group (8), sewage sludge storage pond (3) is connected after pond (4) prepared by medicament and is accessed bed mud conditioner again, and the liquid that settling tank and filtering equipment produce also is communicated with outside Sewage treatment systems (7) respectively by reflux pump group; Described Controlling System is prepared pond, bed mud storage pool, bed mud conditioner, settling tank and filtering equipment respectively by data line and is carried out control signal transmission with mud storage pool, medicament.
2. the treatment unit of the synchronous deep dehydration of river bottom mud according to claim 1 and heavy metals removal, is characterized in that: pond prepared by described medicament and bed mud conditioner is also configured with nutrition agent adding equipment respectively.
3. the treatment unit of the synchronous deep dehydration of river bottom mud according to claim 1 and 2 and heavy metals removal, is characterized in that: pond prepared by described medicament and bed mud conditioner is also configured with aerator respectively.
4. the treatment unit of the synchronous deep dehydration of river bottom mud according to claim 3 and heavy metals removal, is characterized in that: described reflux pump group is be communicated with filtering equipment and water reflux pump group (9) after the filter of Sewage treatment systems and the supernatant liquor reflux pump group (10) being communicated with bed mud conditioner and Sewage treatment systems respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215911.6U CN204569690U (en) | 2015-04-10 | 2015-04-10 | The treatment unit of the synchronous deep dehydration of a kind of river bottom mud and heavy metals removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215911.6U CN204569690U (en) | 2015-04-10 | 2015-04-10 | The treatment unit of the synchronous deep dehydration of a kind of river bottom mud and heavy metals removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204569690U true CN204569690U (en) | 2015-08-19 |
Family
ID=53862360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520215911.6U Expired - Fee Related CN204569690U (en) | 2015-04-10 | 2015-04-10 | The treatment unit of the synchronous deep dehydration of a kind of river bottom mud and heavy metals removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204569690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860689A (en) * | 2021-11-16 | 2021-12-31 | 中冶建工集团有限公司 | Black and odorous water body sludge treatment process |
-
2015
- 2015-04-10 CN CN201520215911.6U patent/CN204569690U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860689A (en) * | 2021-11-16 | 2021-12-31 | 中冶建工集团有限公司 | Black and odorous water body sludge treatment process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101700948B (en) | Wastewater treatment technology for textile dyeing and finishing industry | |
| CN105399273A (en) | Pretreatment method of high-concentration organic phosphorus wastewater and device | |
| CN101698550A (en) | Advanced treating method of landfill leachate | |
| CN204151203U (en) | A kind of dangerous waste disposal center Waste Water Treatment | |
| CN101239767A (en) | High concentration organic sewage treating system | |
| CN102976552B (en) | Method for deep treatment on difficultly-degraded organic nitrogen-containing industrial wastewater | |
| CN101659502B (en) | Method for treating waste leachate by utilizing high denitrification shared type Orbal oxidation ditch | |
| CN105130133A (en) | Treatment system and method for water-soluble paint production wastewater | |
| CN204588956U (en) | A kind of low turbidity micro-polluted surface water advanced treatment apparatus | |
| CN108298760A (en) | Townm refuse transfer station leachate in-situ removal of carbon and nitrogen integrated apparatus and its technique | |
| CN203922903U (en) | A kind of mine tailing wastewater treatment system | |
| CN204385021U (en) | A kind of system processing waste water of heat-engine plant | |
| CN103739172B (en) | Water circulating and reusing method for industrial parks | |
| CN202099169U (en) | Device for advanced treatment of secondary effluent in municipal sewage plant | |
| CN204569690U (en) | The treatment unit of the synchronous deep dehydration of a kind of river bottom mud and heavy metals removal | |
| CN105621819B (en) | One heavy metal species Tailings Dam percolate multiplexed combination ecological treatment system and method | |
| CN106986506B (en) | Integrated industrial water purifier | |
| CN103420463A (en) | In-situ enhanced treatment compound reagent in coordination with printing and dyeing wastewater inherent pollutant component | |
| CN214571408U (en) | Full-quantitative treatment system for percolate of household garbage landfill | |
| CN212403883U (en) | Wastewater treatment equipment | |
| CN105130124B (en) | The collaboration minimizing technology of nitrate nitrogen, ammonia nitrogen and COD in a kind of polluted-water | |
| CN205473259U (en) | Integration continuous type fenton oxidation reduction sewage treatment device | |
| CN210796135U (en) | Biogas slurry wastewater treatment system of integral type | |
| CN204474468U (en) | A kind of device processing plating mixing water | |
| CN208684676U (en) | A kind of garbage percolation liquid treating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |