CN105923716A - Equipment for removing percolate chromium and cyanogen ions in sludge composting treatment in electroplating industry and removing method of equipment - Google Patents

Equipment for removing percolate chromium and cyanogen ions in sludge composting treatment in electroplating industry and removing method of equipment Download PDF

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Publication number
CN105923716A
CN105923716A CN201610306054.XA CN201610306054A CN105923716A CN 105923716 A CN105923716 A CN 105923716A CN 201610306054 A CN201610306054 A CN 201610306054A CN 105923716 A CN105923716 A CN 105923716A
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China
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water
electrolyzer
control system
chromium
parts
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CN201610306054.XA
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Chinese (zh)
Inventor
张惠芳
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Xuzhou University of Technology
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Xuzhou University of Technology
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Priority to CN201610306054.XA priority Critical patent/CN105923716A/en
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    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46133—Electrodes characterised by the material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/18—Cyanides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/22—Chromium or chromium compounds, e.g. chromates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46145—Fluid flow

Abstract

The invention discloses equipment for removing percolate chromium and cyanogen ions in sludge composting treatment in the electroplating industry and a removing method of the equipment. The equipment is composed of a percolate collecting tank, a water pumping system, a backwash water storage trough, an electrolytic tank, a clean water pipe, a clean water tank, a backwash system, a backwash wastewater pipe, an electrolytic tank support and a control system. The control system is used for starting the water pumping system, wastewater in the percolate collecting tank is pumped into the electrolytic tank, and clean water obtained after the wastewater is treated by the electrolytic tank is discharged into the clean water tank through the clean water pipe; after the equipment runs for 30-55 h, the backwash system is started to carry out backwash on the equipment, backwash water is collected by the backwash water storage trough and then discharged out of the backwash wastewater pipe. The equipment for removing percolate chromium and cyanogen ions in sludge composting treatment in the electroplating industry is simple in structure, high in chromium and cyanogen ion removing rate and wide in application range.

Description

A kind of electroplating industry sludge composting process in percolate chromium cryanide ion eliminating equipment and Minimizing technology
Technical field
The invention belongs to sludge composting effluent treatment plant field, be specifically related to ooze during a kind of electroplating industry sludge composting processes Filtrate chromium cryanide ion eliminating equipment and minimizing technology thereof.
Background technology
The electroplating industry mud in China many areas exists chromium cryanide ion exceed standard phenomenon, to the physical and mental health of resident, daily Life and commercial production etc. all adversely affect.Just establish except chromium is except cyanogen method as far back as China in the early days of foundation, its theoretical and Application successively experienced by autoxidation process, contact oxidation method, three developmental stage of bioanalysis.But up to now, how to realize chromium The rapidly and efficiently removal of cryanide ion is still sewage treatment process in conventional electroplating industry mud and is faced and need the common of solution One of problem.To this end, this patent proposes innovative technology for the removal of chromium cryanide ion in the process of electroplating industry sludge composting, this There is important social benefit and economic benefit.
Along with the fast development of China's economy, the caused sludge water of electroplating industry production activity pollutes from point pollution gradually Expand to facial contamination.In electroplating industry mud leachate contamination transnormal items chromium cryanide ion be cause water pollution most common because of Element.Chromium cryanide ion exceeds standard to be had nature to produce and artificially causes two kinds of approach.The spontaneous pollution that predominantly primitive environment causes, Having the biggest relation with geological structure, it pollutes universal.And the mainly electroplating industry mud artificially caused is containing chromium cyanide wastewater Wantonly discharge.
In electroplating industry mud percolate, excess chromium cryanide ion also can produce high risks to commercial production.It pollutes washing and uses The quality such as product gloss color can be reduced when water or raw materials for production, as the most prominent in Industry Effects such as weaving, printing and dyeing, knitting, papermaking Go out.Chromium cryanide ion in water can be bonded on fiber, produces rust speckle on the textile.During dyeing, chromium cryanide ion can be with dye Material combines, and makes tone the most bright-coloured.
The also decomposition to bleach of chromium cryanide ion has catalytic action, makes bleaching operation that difficulty to occur.In paper industry, water In chromium cryanide ion can optionally be adsorbed between cellulose, make paper pulp its colour changed into yellow, and make bleaching and Color reduce. In the food industry, in water, the chromium cryanide ion of excess can affect the color and luster of product.
In sum, in electroplating industry Treatment of Sludge percolate excess chromium cryanide ion not only to people's life, water system, Commercial production has an impact, to human health be also hundred evil and none is sharp.Therefore chromium cryanide ion is all contained by the water quality index of various countries Amount has done strict restriction.
Except the existing common technique of chromium cryanide ion is: autoxidation process, contact oxidation method, bioanalysis, medicament oxidizing process etc..
Under prior art conditions, will become inevitable except the construction cost of chromium cryanide ion equipment and the increase of operating cost.Mesh Before except chromium cryanide ion process integrated apparatus, existing traditional handicraft, it is long that processing method has technological process, control complexity, Take up an area big, the shortcomings such as processing cost is high.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides chromium cryanide ion eliminating equipment in a kind of sludge composting percolate, bag Include:
Leachate collection pond 1, pumping system 2, backwash aqua storage tank 3, electrolyzer 4, clear water pipe 5, clear water reserviors 6, backwash system System 7, backwashing sewage water pipe 8, electrolyzer support 9, control system 10；Described electrolyzer support 9 top is provided with electrolyzer 4, Being provided with pumping system 2 between described electrolyzer 4 and leachate collection pond 1, the surface of described electrolyzer 4 is provided with backwash storage Tank 3, the front portion of described backwash aqua storage tank 3 is arranged right below backwashing sewage water pipe 8, described electrolyzer 4 and clear water reserviors 6 Between be provided with clear water pipe 5, described clear water reserviors 6 side is provided with backwashing system 7, is provided with control below described electrolyzer support 9 System 10；
Water pump in described pumping system 2, electromagnetic valve, water flow meter are connected with control system 10 polygon control survey；
Electromagnetic valve in described clear water pipe 5 is connected with control system 10 polygon control survey；
Water pump in described backwashing system 7, electromagnetic valve, water flow meter are connected with control system 10 polygon control survey；
Electromagnetic valve in described backwashing sewage water pipe 8 is connected with control system 10 polygon control survey.
Further, described electrolyzer 4 includes: rotation water distributing device 4-1, is electrolysed post 4-2, liquid level sensor 4-3, chromium Cryanide ion electrolysis ability induction apparatus 4-4；Described rotation water distributing device 4-1 is positioned at the internal uppermost position of described electrolyzer 4, institute State rotation water distributing device 4-1 to be connected with control system 10 polygon control survey；It is internal that described electrolysis post 4-2 is positioned at described electrolyzer 4 Bottom position, described electrolysis post 4-2 upper surface is away from described rotation water distributing device 4-1 lower surface 5cm～30cm, described electrolysis It is internal that the vertical uniform circular of post 4-2 is arranged in described electrolyzer 4, and quantity is no less than 10, phase between adjacent electrolysis post 4-2 Away from 10cm～30cm, described electrolysis post 4-2 controls to be connected with control system 10 by wire；Described liquid level sensor 4-3 position Internal in described electrolyzer 4, described liquid level sensor 4-3 is away from described electrolyzer 4 upper end cornice 15mm～40mm, described Liquid level sensor 4-3 controls to be connected with control system 10 by wire；Described chromium cryanide ion electrolysis ability induction apparatus 4-4 is positioned at In described electrolysis post 4-2 layer, described chromium cryanide ion electrolysis ability induction apparatus 4-4 controls to be connected with control system 10 by wire.
Further, described rotation water distributing device 4-1 includes: water inlet pipe 4-1-1, rolling bearing 4-1-2, rotates water distributing plate 4-1-3, cloth water column 4-1-4, water distributing pore 4-1-5；Described water inlet pipe 4-1-1 is provided with rolling bearing 4-1-2, described rotation water distribution Plate 4-1-3 is rotationally connected with described water inlet pipe 4-1-1 by rolling bearing 4-1-2, and the inside of described rotation water distributing plate 4-1-3 sets The internal water channel being connected with described water inlet pipe 4-1-1, the lower plane of described rotation water distributing plate 4-1-3 is had to be provided with and internal water channel The cloth water column 4-1-4 being connected, described cloth water column 4-1-4 surface distributed has substantial amounts of water distributing pore 4-1-5, described water distributing pore 4-1-5 Being connected with described cloth water column 4-1-4 internal water channel, described water distributing pore 4-1-5 pore size is 5mm～30mm, described turn Dynamic bearing 4-1-2, rotation water distributing plate 4-1-3, cloth water column 4-1-4 and water distributing pore 4-1-5 are all with rolling bearing 4-1-2 Pivot Point Center Line is that clockwise rotation is done in the center of circle.
Further, described electrolysis post 4-2 includes: end cap 4-2-1, newel 4-2-2, anode 4-2-3, negative electrode 4-2-4； Described newel 4-2-2 is a pole type structure, a diameter of 10cm～40cm, and described newel 4-2-2 two ends are fixed respectively Having identical end cap 4-2-1, described end cap 4-2-1 is a hemispherical configuration, described end cap 4-2-1 and described newel 4-2-2 Central axes, described anode 4-2-3 is positioned at electrolysis post 4-2 upper port, and described negative electrode 4-2-4 is positioned at electrolysis post 4-2 lower end Mouthful, anode 4-2-3 and negative electrode 4-2-4 controls to be connected with control system 10 by wire alone.
Further, described anode 4-2-3 and negative electrode 4-2-4 is by macromolecular material pressing mold molding, anode 4-2-3 and negative electrode Constituent and the manufacture process of 4-2-4 are as follows:
(1) anode 4-2-3 and negative electrode 4-2-4 constituent:
Count by weight, N-isopropyl-chloracetanilide 7～30 parts, tetrachlorophthalic tetrachlorophthalic anhydrid (tetrachlorophthalic anhydride) 31～49 parts, Cis-1,2,3,6-tetrabydrophthalic anhydrides 2～10 parts, poly-m-phenylene adipamide resin 16～35 parts, a nitro p-aminophenyl Ether 20～70 parts, p-N, N-lignocaine salicylide 45～105 parts, concentration is the phosphoglycerol phosphorus of 35ppm～85ppm Acid esters enzyme 1300～2500 parts, the double contracting thiocarbohydrazide 10 of m-nitroacetophenone～30 parts, m-acetylamino nitro Benzene 5～45 parts, cross-linking agent 60～90 parts, 2,3-diphosphoglycerides 5～20 parts, alkyl-polyoxyethylene ether acetate 22～ 66 parts, alkyl (phenol) polyoxyethylene ether sulfosuccinic acid monoester disodium salt 13～26 parts, single-C10-14-alkoxyl α-hydrogen-ω-hydroxyl Base-polyoxyethylene groups ether phosphate 18～38 parts；
Described cross-linking agent is that fenvalerate, alkylphenol polyoxyethylene acetic acid, vinyl-acetic ester are any with the polymer of oxirane A kind of.
(2) anode 4-2-3 and the manufacture process of negative electrode 4-2-4, comprise the steps of
1st step: add ultra-pure water 900～2800 parts that electrical conductivity is 0.02 μ S/cm～0.15 μ S/cm in a kettle., start Agitator in reactor, rotating speed is 111rpm～151rpm, start heat pump, make reactor temperature rise to 47 DEG C～ 69℃；It is sequentially added into N-isopropyl-chloracetanilide, tetrachlorophthalic tetrachlorophthalic anhydrid (tetrachlorophthalic anhydride), cis-1,2,3,6-tetrahydrochysene Phthalic anhydride, stirring is to being completely dissolved, and regulation pH value is 2.4～5.2, and agitator speed is adjusted to 56rpm～86 Rpm, temperature is 32 DEG C～66 DEG C, esterification 8～19 hours；
2nd step: take poly-m-phenylene adipamide resin, a nitro 4-aminophenetole is pulverized, and powder diameter is 340～740 mesh； Adding p-N, N-lignocaine salicylide mix homogeneously, be laid in pallet, tiling thickness is 18mm～34mm, uses Dosage is 3.0kGy～6.5kGy, energy is the alpha ray irradiation 30 of 4.5MeV～7.5MeV～80 minutes；
3rd step: the mixed-powder processed through the 2nd step is dissolved in glycerophosphate phosphatase, adds reactor, and agitator speed is 50rpm～95rpm, temperature is 75 DEG C～115 DEG C, start vacuum pump make the vacuum of reactor reach-0.30MPa～- 0.80MPa, keeps this state response 5～15 hours；Pressure release is also passed through nitrogen, make reacting kettle inner pressure be 0.17MPa～ 0.35MPa, insulation stands 7～17 hours；Agitator speed is promoted to 148rpm～193rpm, and simultaneous reactions still pressure release is extremely 0MPa；It is sequentially added into the double contracting thiocarbohydrazide of m-nitroacetophenone, after m-acetylamino Nitrobenzol is completely dissolved, adds Enter cross-linking agent stirring mixing so that the hydrophile-lipophile balance value of reactor solution is 5.6～9.8, and insulation stands 12～20 hours； 4th step: when agitator speed is 143rpm～196rpm, is sequentially added into 2,3-diphosphoglyceride, alkyl polyoxyethylene Ether acetic acid ester, alkyl (phenol) polyoxyethylene ether sulfosuccinic acid monoester disodium salt and single-C10-14-alkoxyl alpha-hydro-omega-hydroxy-poly Oxyethylene group ether phosphate, promote reactor pressure so that it is reach 0.40MPa～0.85MPa, temperature be 140 DEG C～ 210 DEG C, polyreaction 10～24 hours；After having reacted, reacting kettle inner pressure is down to 0MPa, be cooled to 30 DEG C～ 50 DEG C, discharging, enter molding press and can be prepared by anode 4-2-3 and negative electrode 4-2-4.
Further, the invention also discloses chromium cryanide ion minimizing technology in a kind of sludge composting percolate, the method includes Following step:
1st step: when control system 10 detects that electrolyzer 4 middle water level drops to lowest water level by liquid level sensor 4-3, starts Water pump in pumping system 2 and electromagnetic valve, carry the sewage being stored in leachate collection pond 1 in electrolyzer 4, draw water Water flow meter in system 2 uses water rate control at 20m3/ h～50m3/h；Meanwhile, control system 10 starts rotation Water-distributing device 4-1 uniformly send water in electrolyzer 4, in case water distribution is uneven, sewage flows downwardly through electrolysis after entering electrolyzer 4 In post 4-2 layer, make the chromium cryanide ion generation redox reaction in sewage and generate innocuous substance after electrolysis post 4-2 energising, chromium The electrolysis ability of electrolysis post 4-2 is monitored by cryanide ion electrolysis ability induction apparatus 4-4 in real time, when electrolysis ability less than 25%～ When 45%, chromium cryanide ion electrolysis ability induction apparatus 4-4 sends feedback signal to control system 10, and sends audio alarm, logical Know that staff changes electrolysis post 4-2；
2nd step: after plant running 30min～60min, it is clear by handle well that control system 10 opens the electromagnetic valve in clear water pipe 5 Water is entered in clear water reserviors 6 by clear water pipe 5；
3rd step: after plant running 30h～55h, control system 10 closes the water pump in described pumping system 2, electromagnetic valve, water Flowmeter body, rotation water distributing device 4-1, the electromagnetic valve in clear water pipe 5, and start backwashing system 7 this device is carried out instead Flushing action, backwashing water is discharged by backwashing sewage water pipe 8 after backwash aqua storage tank 3 is collected；
4th step: meanwhile, liquid level sensor 4-3 carries out real-time security monitoring to electrolyzer 4 middle water level, when operating water level is positioned at On electrolyzer 4 during eaves 15cm～25cm, liquid level sensor 4-3 sends feedback signal, control system 10 to control system 10 By cutting system main power so that whole system quits work, and send audio alarm 15s, treat that liquid level sensor 4-3 detects To water level below preset security line time, liquid level sensor 4-3 sends signal to control system 10, and control system 10 will be recovered System power supply, whole equipment normally works.
Chromium cryanide ion eliminating equipment in a kind of sludge composting percolate disclosed in patent of the present invention, has an advantage in that:
(1) this apparatus structure is the most novel, with low cost；
(2) rotation water distributing device in this device, makes water distribution more uniform；
(3) this device Inner electrolysis post Anodic 4-2-3 and negative electrode 4-2-4 material use macromolecular material to be prepared from, and electrolysis effectiveness is more Good.
Chromium cryanide ion eliminating equipment simple in construction in a kind of sludge composting percolate of the present invention, cryanide ion clearance is high, The scope of application is wide.
Accompanying drawing explanation
Fig. 1 is chromium cryanide ion eliminating equipment schematic diagram in heretofore described a kind of sludge composting percolate.
Fig. 2 is heretofore described electrolyzer internal structure schematic diagram.
Fig. 3 is heretofore described rotation water distributing device schematic diagram.
Fig. 4 is heretofore described electrolysis post schematic diagram.
What Fig. 5 was the anode in heretofore described embodiment, reference examples and cathode material to containing chromium cryanide ion sewage is total clean Rate graph of a relation.
In figure 1 above～Fig. 4, leachate collection pond 1, pumping system 2, backwash aqua storage tank 3, electrolyzer 4, rotate Water-distributing device 4-1, water inlet pipe 4-1-1, rolling bearing 4-1-2, rotate water distributing plate 4-1-3, cloth water column 4-1-4, water distributing pore 4- 1-5, is electrolysed post 4-2, end cap 4-2-1, newel 4-2-2, anode 4-2-3, negative electrode 4-2-4, liquid level sensor 4-3, chromium Cryanide ion electrolysis ability induction apparatus 4-4, clear water pipe 5, clear water reserviors 6, backwashing system 7, backwashing sewage water pipe 8, electrolyzer Support 9, control system 10.
Detailed description of the invention
In a kind of sludge composting percolate provided the present invention with embodiment below in conjunction with the accompanying drawings, chromium cryanide ion eliminating equipment enters Row further illustrates.
As it is shown in figure 1, be the schematic diagram of chromium cryanide ion eliminating equipment in a kind of sludge composting percolate of providing of the present invention. Figure is found out, including: leachate collection pond 1, pumping system 2, backwash aqua storage tank 3, electrolyzer 4, clear water pipe 5, clearly Pond 6, backwashing system 7, backwashing sewage water pipe 8, electrolyzer support 9, control system 10；Described electrolyzer support 9 Top is provided with electrolyzer 4, is provided with pumping system 2 between described electrolyzer 4 and leachate collection pond 1, described electrolyzer 4 Surface is provided with backwash aqua storage tank 3, and the front portion of described backwash aqua storage tank 3 is arranged right below backwashing sewage water pipe 8, described Being provided with clear water pipe 5 between electrolyzer 4 and clear water reserviors 6, described clear water reserviors 6 side is provided with backwashing system 7, described electrolyzer Control system 10 it is provided with below support 9；
Water pump in described pumping system 2, electromagnetic valve, water flow meter are connected with control system 10 polygon control survey；
Electromagnetic valve in described clear water pipe 5 is connected with control system 10 polygon control survey；
Water pump in described backwashing system 7, electromagnetic valve, water flow meter are connected with control system 10 polygon control survey；
Electromagnetic valve in described backwashing sewage water pipe 8 is connected with control system 10 polygon control survey.
As in figure 2 it is shown, be heretofore described electrolyzer internal structure schematic diagram.Find out from Fig. 2 or Fig. 1, institute Stating electrolyzer 4 to include: rotation water distributing device 4-1, be electrolysed post 4-2, liquid level sensor 4-3, chromium cryanide ion electrolysis sense of competence should Device 4-4；Described rotation water distributing device 4-1 is positioned at the internal uppermost position of described electrolyzer 4, described rotation water distributing device 4-1 It is connected with control system 10 polygon control survey；Described electrolysis post 4-2 is positioned at described electrolyzer 4 interior bottom portion position, described electrolysis Post 4-2 upper surface is away from described rotation water distributing device 4-1 lower surface 5cm～30cm, the described electrolysis vertical uniform circular of post 4-2 Being arranged in described electrolyzer 4 internal, quantity is no less than 10, at a distance of 10cm～30cm between adjacent electrolysis post 4-2, described Electrolysis post 4-2 controls to be connected with control system 10 by wire；It is internal that described liquid level sensor 4-3 is positioned at described electrolyzer 4, Described liquid level sensor 4-3 passes through to lead away from described electrolyzer 4 upper end cornice 15mm～40mm, described liquid level sensor 4-3 Line controls to be connected with control system 10；Described chromium cryanide ion electrolysis ability induction apparatus 4-4 is positioned at described electrolysis post 4-2 layer, Described chromium cryanide ion electrolysis ability induction apparatus 4-4 controls to be connected with control system 10 by wire.
As it is shown on figure 3, be heretofore described rotation water distributing device schematic diagram.Finding out in figure, described rotation water distributing fills Put 4-1 to include: water inlet pipe 4-1-1, rolling bearing 4-1-2, rotate water distributing plate 4-1-3, cloth water column 4-1-4, water distributing pore 4-1-5； Described water inlet pipe 4-1-1 is provided with rolling bearing 4-1-2, described rotation water distributing plate 4-1-3 by rolling bearing 4-1-2 with described Water inlet pipe 4-1-1 is rotationally connected, and the inside of described rotation water distributing plate 4-1-3 is provided with the inside being connected with described water inlet pipe 4-1-1 Water channel, the lower plane of described rotation water distributing plate 4-1-3 is provided with the cloth water column 4-1-4 being connected with internal water channel, described cloth water column 4-1-4 surface distributed has substantial amounts of water distributing pore 4-1-5, described water distributing pore 4-1-5 to be connected with described cloth water column 4-1-4 internal water channel Logical, described water distributing pore 4-1-5 pore size is 5mm～30mm, described rolling bearing 4-1-2, rotate water distributing plate 4-1-3, Cloth water column 4-1-4 and water distributing pore 4-1-5 all does clockwise rotation with rolling bearing 4-1-2 Pivot Point Center line for the center of circle.
As shown in Figure 4, it is heretofore described electrolysis post schematic diagram.Finding out in figure, described electrolysis post 4-2 includes: end Cap 4-2-1, newel 4-2-2, anode 4-2-3, negative electrode 4-2-4；Described newel 4-2-2 is a pole type structure, diameter Being respectively fixed at two ends with identical end cap 4-2-1, described end cap 4-2-1 for 10cm～40cm, described newel 4-2-2 is one Hemispherical configuration, described end cap 4-2-1 and described newel 4-2-2 central axes, described anode 4-2-3 is positioned at electrolysis post 4-2 upper port, described negative electrode 4-2-4 is positioned at electrolysis post 4-2 lower port, and anode 4-2-3 and negative electrode 4-2-4 passes through alone wire Control to be connected with control system 10.
In a kind of sludge composting percolate described in invention, the work process of chromium cryanide ion eliminating equipment is:
1st step: when control system 10 detects that electrolyzer 4 middle water level drops to lowest water level by liquid level sensor 4-3, starts Water pump in pumping system 2 and electromagnetic valve, carry the sewage being stored in leachate collection pond 1 in electrolyzer 4, draw water Water flow meter in system 2 uses water rate control at 20m3/ h～50m3/h；Meanwhile, control system 10 starts rotation Water-distributing device 4-1 uniformly send water in electrolyzer 4, in case water distribution is uneven, sewage flows downwardly through electrolysis after entering electrolyzer 4 In post 4-2 layer, make the chromium cryanide ion generation redox reaction in sewage and generate innocuous substance after electrolysis post 4-2 energising, chromium The electrolysis ability of electrolysis post 4-2 is monitored by cryanide ion electrolysis ability induction apparatus 4-4 in real time, when electrolysis ability less than 25%～ When 45%, chromium cryanide ion electrolysis ability induction apparatus 4-4 sends feedback signal to control system 10, and sends audio alarm, logical Know that staff changes electrolysis post 4-2；
2nd step: after plant running 30min～60min, it is clear by handle well that control system 10 opens the electromagnetic valve in clear water pipe 5 Water is entered in clear water reserviors 6 by clear water pipe 5；
3rd step: after plant running 30h～55h, control system 10 closes the water pump in described pumping system 2, electromagnetic valve, water Flowmeter body, rotation water distributing device 4-1, the electromagnetic valve in clear water pipe 5, and start backwashing system 7 this device is carried out instead Flushing action, backwashing water is discharged by backwashing sewage water pipe 8 after backwash aqua storage tank 3 is collected；
4th step: meanwhile, liquid level sensor 4-3 carries out real-time security monitoring to electrolyzer 4 middle water level, when operating water level is positioned at On electrolyzer 4 during eaves 15cm～25cm, liquid level sensor 4-3 sends feedback signal, control system 10 to control system 10 By cutting system main power so that whole system quits work, and send audio alarm 15s, treat that liquid level sensor 4-3 detects To water level below preset security line time, liquid level sensor 4-3 sends signal to control system 10, and control system 10 will be recovered System power supply, whole equipment normally works.
Chromium cryanide ion eliminating equipment simple in construction in a kind of sludge composting percolate of the present invention, cryanide ion clearance is high, The scope of application is wide.
The following is the embodiment of the manufacture process of anode 4-2-3 of the present invention and negative electrode 4-2-4, embodiment is to enter one Step explanation present disclosure, but should not be construed as limitation of the present invention.Without departing from the spirit and substance of the case in the present invention, The amendment being made the inventive method, step or condition and replacement, belong to the scope of the present invention.
If not specializing, the conventional means that technological means used in embodiment is well known to those skilled in the art.
Embodiment 1
According to following steps manufacture anode 4-2-3 of the present invention and negative electrode 4-2-4, and mark meter by weight:
1st step: add the ultra-pure water 900 parts that electrical conductivity is 0.02 μ S/cm in a kettle., start agitator in reactor, turn Speed is 111rpm, starts heat pump, makes reactor temperature rise to 47 DEG C；It is sequentially added into N-isopropyl-chloracetyl for benzene Amine 7 parts, tetrachlorophthalic tetrachlorophthalic anhydrid (tetrachlorophthalic anhydride) 31 parts, cis-1,2,3,6-tetrabydrophthalic anhydride 2 parts, stirring is to complete CL, regulation pH value is 2.4, and agitator speed is adjusted to 56rpm, and temperature is 32 DEG C, esterification 8 hours；
2nd step: take poly-m-phenylene adipamide resin 16 parts, a nitro 4-aminophenetole 20 parts pulverizes, and powder diameter is 340 mesh；Adding p-N, N-45 parts of mix homogeneously of lignocaine salicylide, be laid in pallet, tiling thickness is 18mm, The alpha ray irradiation 30 minutes that employing dosage is 3.0kGy, energy is 4.5MeV；
3rd step: the mixed-powder processed through the 2nd step is dissolved in the glycerophosphate phosphatase 1300 parts that concentration is 35ppm, adds Reactor, agitator speed is 50rpm, and temperature is 75 DEG C, starts vacuum pump and makes the vacuum of reactor reach-0.30MPa, Keep this state response 5 hours；Pressure release is also passed through nitrogen, and making reacting kettle inner pressure is 0.17MPa, and insulation stands 7 hours； Agitator speed is promoted to 148rpm, simultaneous reactions still pressure release to 0MPa；It is sequentially added into the double contracting sulfur of m-nitroacetophenone for right Claim diaminourea 10 parts, after m-acetylamino Nitrobenzol 5 parts is completely dissolved, add cross-linking agent 60 parts stirring mixing so that The hydrophile-lipophile balance value of reactor solution is 5.6, and insulation stands 12 hours；
4th step: when agitator speed is 143rpm, is sequentially added into 2,3-diphosphoglyceride 5 parts, alkyl polyoxyethylene ether second Acid esters 22 parts, alkyl (phenol) polyoxyethylene ether sulfosuccinic acid monoester disodium salt 13 parts, single-C10-14-alkoxyl α-hydrogen-ω- Hydroxyl-polyoxyethylene groups ether phosphate 18 parts, promotes reactor pressure so that it is reaching 0.40MPa, temperature is 140 DEG C, Polyreaction 10 hours；After having reacted, reacting kettle inner pressure is down to 0MPa, is cooled to 30 DEG C, discharging, enter molding press Can be prepared by anode 4-2-3 and negative electrode 4-2-4.
Described cross-linking agent is fenvalerate.
Embodiment 2
According to following steps manufacture anode 4-2-3 of the present invention and negative electrode 4-2-4, and mark meter by weight:
1st step: add the ultra-pure water 900 parts that electrical conductivity is 0.02 μ S/cm in a kettle., start agitator in reactor, turn Speed is 111rpm, starts heat pump, makes reactor temperature rise to 47 DEG C；It is sequentially added into N-isopropyl-chloracetyl for benzene Amine 7 parts, tetrachlorophthalic tetrachlorophthalic anhydrid (tetrachlorophthalic anhydride) 31 parts, cis-1,2,3,6-tetrabydrophthalic anhydride 2 parts, stirring is to complete CL, regulation pH value is 2.4, and agitator speed is adjusted to 56rpm, and temperature is 32 DEG C, esterification 8 hours；
2nd step: take poly-m-phenylene adipamide resin 16 parts, a nitro 4-aminophenetole 20 parts pulverizes, and powder diameter is 340 mesh；Adding p-N, N-45 parts of mix homogeneously of lignocaine salicylide, be laid in pallet, tiling thickness is 18mm, The alpha ray irradiation 30 minutes that employing dosage is 3.0kGy, energy is 4.5MeV；
3rd step: the mixed-powder processed through the 2nd step is dissolved in the glycerophosphate phosphatase 1300 parts that concentration is 35ppm, adds Reactor, agitator speed is 50rpm, and temperature is 75 DEG C, starts vacuum pump and makes the vacuum of reactor reach-0.30MPa, Keep this state response 5 hours；Pressure release is also passed through nitrogen, and making reacting kettle inner pressure is 0.17MPa, and insulation stands 7 hours； Agitator speed is promoted to 148rpm, simultaneous reactions still pressure release to 0MPa；It is sequentially added into the double contracting sulfur of m-nitroacetophenone for right Claim diaminourea 10 parts, after m-acetylamino Nitrobenzol 5 parts is completely dissolved, add cross-linking agent 60 parts stirring mixing so that The hydrophile-lipophile balance value of reactor solution is 5.6, and insulation stands 12 hours；
4th step: when agitator speed is 143rpm, is sequentially added into 2,3-diphosphoglyceride 5 parts, alkyl polyoxyethylene ether second Acid esters 22 parts, alkyl (phenol) polyoxyethylene ether sulfosuccinic acid monoester disodium salt 13 parts, single-C10-14-alkoxyl α-hydrogen-ω- Hydroxyl-polyoxyethylene groups ether phosphate 18 parts, promotes reactor pressure so that it is reaching 0.40MPa, temperature is 140 DEG C, Polyreaction 10 hours；After having reacted, reacting kettle inner pressure is down to 0MPa, is cooled to 30 DEG C, discharging, enter molding press Can be prepared by anode 4-2-3 and negative electrode 4-2-4.
Described cross-linking agent is the polymer of vinyl-acetic ester and oxirane.
Embodiment 3
According to following steps manufacture anode 4-2-3 of the present invention and negative electrode 4-2-4, and mark meter by weight:
1st step: add the ultra-pure water 945 parts that electrical conductivity is 0.0245 μ S/cm in a kettle., start agitator in reactor, Rotating speed is 145rpm, starts heat pump, makes reactor temperature rise to 54 DEG C；It is sequentially added into N-isopropyl-chloracetyl to replace Aniline 12 parts, tetrachlorophthalic tetrachlorophthalic anhydrid (tetrachlorophthalic anhydride) 45 parts, cis-1,2,3,6-tetrabydrophthalic anhydride 5 parts, stirring is extremely Being completely dissolved, regulation pH value is 2.5, and agitator speed is adjusted to 78rpm, and temperature is 38 DEG C, esterification 8.9 hours； 2nd step: take poly-m-phenylene adipamide resin 16.35 parts, a nitro 4-aminophenetole 20.7 parts pulverizes, powder grain Footpath is 340.74 mesh；Adding p-N, N-45.105 parts of mix homogeneously of lignocaine salicylide, be laid in pallet, tile thickness For 18.4mm, the alpha ray irradiation 30.8 minutes that employing dosage is 3.065kGy, energy is 4.575MeV；
3rd step: the mixed-powder processed through the 2nd step is dissolved in the glycerophosphate phosphatase 1325 parts that concentration is 35.85ppm, Adding reactor, agitator speed is 50.5rpm, and temperature is 75.115 DEG C, starts vacuum pump and makes the vacuum of reactor reach To-0.308MPa, keep this state response 5.15 hours；Pressure release is also passed through nitrogen, and making reacting kettle inner pressure is 0.1735MPa, Insulation stands 7.17 hours；Agitator speed is promoted to 148.93rpm, simultaneous reactions still pressure release to 0MPa；Between being sequentially added into The double contracting thiocarbohydrazide 10.3 parts of nitro-acetophenone, after m-acetylamino Nitrobenzol 5.45 parts is completely dissolved, adds and hands over Connection agent 60.9 parts stirring mixing so that the hydrophile-lipophile balance value of reactor solution is 5.698, and insulation stands 12.2 hours；
4th step: when agitator speed is 143.196rpm, is sequentially added into 2,3-diphosphoglyceride 5.2 parts, alkyl polyoxy second Alkene ether acetic acid ester 22.6 parts, alkyl (phenol) polyoxyethylene ether sulfosuccinic acid monoester disodium salt 13.26 parts, single-C10-14-alcoxyl Base alpha-hydro-omega-hydroxy-poly oxyethylene group ether phosphate 18.38 parts, promotes reactor pressure so that it is reach 0.485MPa, temperature Degree is 140.1 DEG C, polyreaction 10.24 hours；After having reacted, reacting kettle inner pressure is down to 0MPa, is cooled to 30.5 DEG C, discharging, enter molding press and can be prepared by anode 4-2-3 and negative electrode 4-2-4.
Described cross-linking agent is alkylphenol polyoxyethylene acetic acid.
Reference examples
Reference examples be certain brand commercially available electrolysis post Anodic and negative electrode for the processing procedure containing chromium cyanogen sewage.
Embodiment 4
Electrolysis post Anodic and negative electrode described in anode 4-2-3 embodiment 1～3 prepared and negative electrode 4-2-4 and reference examples are used for Processing procedure containing chromium cyanogen sewage.Process terminate after respectively to the character containing chromium cyanogen sewage, and to containing chromium cyanogen sewage parameters Impact detect, result is as shown in table 1.
Table 1 is the property in the processing procedure containing chromium cyanogen sewage for the anode described in embodiment 1～3 and reference examples and cathode column Can the impact of parameter, as seen from Table 1, anode 4-2-3 of the present invention and negative electrode 4-2-4, its redox polymerization degree, resistance to Electrolysis strength enhancing rate, redox state coefficient of stabilization, anode and negative electrode year loss rate are above the product that prior art produces.
Additionally, as it is shown in figure 5, be heretofore described anode 4-2-3 and negative electrode 4-2-4 material with to containing chromium cyanogen sewage Gross decontamination rate graph of a relation.Find out in figure, macromolecular material the anode 4-2-3 and the negative electrode 4-2-4 material that manufacture are evenly distributed, Material surface is long-pending relatively big with volume ratio, and Dispersion on surface is good, and the concentration relative comparison example of dispersible carrier free in continuous phase is high. The anode 4-2-3 and the negative electrode 4-2-4 that are manufactured by macromolecular material have good redox property to chromium cryanide ion；Use this Inventing described anode 4-2-3 and negative electrode 4-2-4, it is superior to existing product to chromium cryanide ion gross decontamination rate.

Claims (6)

1. a percolate chromium cryanide ion eliminating equipment during electroplating industry sludge composting processes, including: leachate collection pond (1), take out Water system (2), backwash aqua storage tank (3), electrolyzer (4), clear water pipe (5), clear water reserviors (6), backwashing system (7), Backwashing sewage water pipe (8), electrolyzer support (9), control system (10)；It is characterized in that, described electrolyzer support (9) Top is provided with electrolyzer (4), is provided with pumping system (2) between described electrolyzer (4) and leachate collection pond (1), described The surface of electrolyzer (4) is provided with backwash aqua storage tank (3), and the front portion of described backwash aqua storage tank (3) is arranged right below instead Rinse soil pipe (8), between described electrolyzer (4) and clear water reserviors (6), be provided with clear water pipe (5), described clear water reserviors (6) Side is provided with backwashing system (7), and described electrolyzer support (9) lower section is provided with control system (10)；
Water pump in described pumping system (2), electromagnetic valve, water flow meter are connected with control system (10) polygon control survey；
Electromagnetic valve in described clear water pipe (5) is connected with control system (10) polygon control survey；
Water pump in described backwashing system (7), electromagnetic valve, water flow meter are connected with control system (10) polygon control survey；
Electromagnetic valve in described backwashing sewage water pipe (8) is connected with control system (10) polygon control survey.
Percolate chromium cryanide ion eliminating equipment in a kind of electroplating industry sludge composting process the most according to claim 1, its feature Being, described electrolyzer (4) including: rotation water distributing device (4-1), electrolysis post (4-2), liquid level sensor (4-3), chromium Cryanide ion electrolysis ability induction apparatus (4-4)；Described rotation water distributing device (4-1) is positioned at the internal the top of described electrolyzer (4) Position, described rotation water distributing device (4-1) is connected with control system (10) polygon control survey；Described electrolysis post (4-2) is positioned at Described electrolyzer (4) interior bottom portion position, described electrolysis post (4-2) upper surface is under described rotation water distributing device (4-1) End face 5cm～30cm, it is internal that described electrolysis post (4-2) vertically uniform circular is arranged in described electrolyzer (4), and quantity is not Less than 10, at a distance of 10cm～30cm between adjacent electrolysis post (4-2), described electrolysis post (4-2) passes through wire and control System (10) controls to connect；It is internal that described liquid level sensor (4-3) is positioned at described electrolyzer (4), described liquid level sensor (4-3) away from described electrolyzer (4) upper end cornice 15mm～40mm, described liquid level sensor (4-3) passes through wire and control System processed (10) controls to connect；Described chromium cryanide ion electrolysis ability induction apparatus (4-4) is positioned at described electrolysis post (4-2) layer, Described chromium cryanide ion electrolysis ability induction apparatus (4-4) controls to be connected with control system (10) by wire.
Percolate chromium cryanide ion eliminating equipment in a kind of electroplating industry sludge composting process the most according to claim 2, its feature Being, described rotation water distributing device (4-1) including: water inlet pipe (4-1-1), rolling bearing (4-1-2), rotates water distributing plate (4-1-3), cloth water column (4-1-4), water distributing pore (4-1-5)；Described water inlet pipe (4-1-1) is provided with rolling bearing (4-1-2), Described rotation water distributing plate (4-1-3) is rotationally connected with described water inlet pipe (4-1-1) by rolling bearing (4-1-2), described turn The inside of dynamic water distributing plate (4-1-3) is provided with the internal water channel being connected with described water inlet pipe (4-1-1), described rotation water distributing plate (4-1-3) lower plane is provided with the cloth water column (4-1-4) being connected with internal water channel, described cloth water column (4-1-4) surface distributed Substantial amounts of water distributing pore (4-1-5), described water distributing pore (4-1-5) is had to be connected with described cloth water column (4-1-4) internal water channel, institute Stating water distributing pore (4-1-5) pore size is 5mm～30mm, described rolling bearing (4-1-2), rotate water distributing plate (4-1-3), Cloth water column (4-1-4) and water distributing pore (4-1-5) are all that the center of circle turns clockwise with rolling bearing (4-1-2) Pivot Point Center line Motion.
Percolate chromium cryanide ion eliminating equipment in a kind of electroplating industry sludge composting process the most according to claim 2, its feature Being, described electrolysis post (4-2) including: end cap (4-2-1), newel (4-2-2), anode (4-2-3), negative electrode (4-2- 4)；Described newel (4-2-2) is a pole type structure, a diameter of 10cm～40cm, described newel (4-2-2) two End is respectively fixed with identical end cap (4-2-1), and described end cap (4-2-1) is a hemispherical configuration, described end cap (4-2-1) With described newel (4-2-2) central axes, described anode (4-2-3) is positioned at electrolysis post (4-2) upper port, described Negative electrode (4-2-4) is positioned at electrolysis post (4-2) lower port, and anode (4-2-3) and negative electrode (4-2-4) are alone by wire and control System processed (10) controls to connect.
Percolate chromium cryanide ion eliminating equipment in a kind of electroplating industry sludge composting process the most according to claim 3, its feature Being, described anode (4-2-3) and negative electrode (4-2-4) are by macromolecular material pressing mold molding, anode (4-2-3) and negative electrode (4-2-4) constituent and manufacture process are as follows:
(1) anode (4-2-3) and negative electrode (4-2-4) constituent:
Count by weight, N-isopropyl-chloracetanilide 7～30 parts, tetrachlorophthalic tetrachlorophthalic anhydrid (tetrachlorophthalic anhydride) 31～49 parts, Cis-1,2,3,6-tetrabydrophthalic anhydrides 2～10 parts, poly-m-phenylene adipamide resin 16～35 parts, a nitro p-aminophenyl Ether 20～70 parts, p-N, N-lignocaine salicylide 45～105 parts, concentration is the phosphoglycerol of 35ppm～85ppm Phosphate 1300～2500 parts, the double contracting thiocarbohydrazide 10 of m-nitroacetophenone～30 parts, m-acetylamino nitre Base benzene 5～45 parts, cross-linking agent 60～90 parts, 2,3-diphosphoglycerides 5～20 parts, alkyl-polyoxyethylene ether acetate 22～66 parts, alkyl (phenol) polyoxyethylene ether sulfosuccinic acid monoester disodium salt 13～26 parts, single-C10-14-alkoxyl α-hydrogen- ω-hydroxyl-polyoxyethylene groups ether phosphate 18～38 parts；
Described cross-linking agent is that fenvalerate, alkylphenol polyoxyethylene acetic acid, vinyl-acetic ester are any with the polymer of oxirane A kind of；
(2) anode (4-2-3) and the manufacture process of negative electrode (4-2-4), comprise the steps of
1st step: add ultra-pure water 900～2800 parts that electrical conductivity is 0.02 μ S/cm～0.15 μ S/cm in a kettle., start Agitator in reactor, rotating speed is 111rpm～151rpm, start heat pump, make reactor temperature rise to 47 DEG C～ 69℃；It is sequentially added into N-isopropyl-chloracetanilide, tetrachlorophthalic tetrachlorophthalic anhydrid (tetrachlorophthalic anhydride), cis-1,2,3,6-tetrahydrochysene Phthalic anhydride, stirring is to being completely dissolved, and regulation pH value is 2.4～5.2, and agitator speed is adjusted to 56rpm～86 Rpm, temperature is 32 DEG C～66 DEG C, esterification 8～19 hours；
2nd step: take poly-m-phenylene adipamide resin, a nitro 4-aminophenetole is pulverized, and powder diameter is 340～740 Mesh；Adding p-N, N-lignocaine salicylide mix homogeneously, be laid in pallet, tiling thickness is 18mm～34mm, To use dosage be 3.0kGy～6.5kGy, energy is the alpha ray irradiation 30 of 4.5MeV～7.5MeV～80 minutes；
3rd step: the mixed-powder processed through the 2nd step is dissolved in glycerophosphate phosphatase, adds reactor, and agitator speed is 50rpm～95rpm, temperature is 75 DEG C～115 DEG C, start vacuum pump make the vacuum of reactor reach-0.30MPa～- 0.80MPa, keeps this state response 5～15 hours；Pressure release is also passed through nitrogen, make reacting kettle inner pressure be 0.17MPa～ 0.35MPa, insulation stands 7～17 hours；Agitator speed is promoted to 148rpm～193rpm, and simultaneous reactions still pressure release is extremely 0MPa；It is sequentially added into the double contracting thiocarbohydrazide of m-nitroacetophenone, after m-acetylamino Nitrobenzol is completely dissolved, adds Enter cross-linking agent stirring mixing so that the hydrophile-lipophile balance value of reactor solution is 5.6～9.8, and insulation stands 12～20 hours；
4th step: when agitator speed is 143rpm～196rpm, is sequentially added into 2,3-diphosphoglyceride, alkyl polyoxyethylene Ether acetic acid ester, alkyl (phenol) polyoxyethylene ether sulfosuccinic acid monoester disodium salt and single-C10-14-alkoxyl alpha-hydro-omega-hydroxy-poly Oxyethylene group ether phosphate, promote reactor pressure so that it is reach 0.40MPa～0.85MPa, temperature be 140 DEG C～ 210 DEG C, polyreaction 10～24 hours；After having reacted, reacting kettle inner pressure is down to 0MPa, be cooled to 30 DEG C～ 50 DEG C, discharging, enter molding press and can be prepared by anode (4-2-3) and negative electrode (4-2-4).
6. percolate chromium cryanide ion minimizing technology during an electroplating industry sludge composting processes, it is characterised in that the method includes following Several steps:
1st step: by liquid level sensor (4-3), control system (10) detects that electrolyzer (4) middle water level drops to lowest water level Time, start the water pump in pumping system (2) and electromagnetic valve, the sewage in leachate collection pond (1) will be stored in electrolyzer (4) conveying in, the water flow meter in pumping system (2) uses water rate control at 20m3/ h～50m3/h；Meanwhile, Control system (10) starts rotation water distributing device (4-1) and uniformly send water in electrolyzer (4), in case water distribution is uneven, dirty Water flows downwardly through in electrolysis post (4-2) layer after entering electrolyzer (4), make the chromium cyanogen in sewage after electrolysis post (4-2) energising Ion generation redox reaction also generates innocuous substance, and chromium cryanide ion electrolysis ability induction apparatus (4-4) is to electrolysis post (4-2) Electrolysis ability monitor in real time, when be electrolysed ability less than 25%～45% time, chromium cryanide ion electrolysis ability induction apparatus (4-4) Send feedback signal to control system (10), and send audio alarm, notify that staff changes electrolysis post (4-2)；
2nd step: after plant running 30min～60min, control system (10) is opened the electromagnetic valve in clear water pipe (5) and will be processed Good clear water is entered in clear water reserviors (6) by clear water pipe (5)；
3rd step: after plant running 30h～55h, control system (10) closes the water pump in described pumping system (2), electromagnetism Valve, water flow meter, rotation water distributing device (4-1), the electromagnetic valve in clear water pipe (5), and start backwashing system (7) This device is carried out backwash effect, and backwashing water is discharged by backwashing sewage water pipe (8) after backwash aqua storage tank (3) is collected；
4th step: meanwhile, liquid level sensor (4-3) carries out real-time security monitoring to electrolyzer (4) middle water level, when running water When position is positioned at electrolyzer (4) upper eaves 15cm～25cm, liquid level sensor (4-3) sends feedback letter to control system (10) Number, control system (10) is by cutting system main power so that whole system quits work, and sends audio alarm 15s, treats Liquid level sensor (4-3) detects when water level is below preset security line, and liquid level sensor (4-3) is to control system (10) Sending signal, recovery system power supply, whole equipment are normally worked by control system (10).
CN201610306054.XA 2016-05-10 2016-05-10 Equipment for removing percolate chromium and cyanogen ions in sludge composting treatment in electroplating industry and removing method of equipment Pending CN105923716A (en)

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