CN206352086U - A kind of processing system of the effluent containing heavy metal ions containing high concentration - Google Patents

Abstract

The utility model is related to a kind of processing system of effluent containing heavy metal ions containing high concentration, it includes the comprehensive pool for being respectively used to collect comprehensive wastewater, cyanogen pond for collecting cyanide wastewater, chromium pond for collecting chromate waste water, it is connected with the cyanogen pond for the broken cyanide pond for removing cryanide ion in cyanide wastewater, it is connected with the chromium pond for the broken chromium device for removing chromium ion in chromate waste water, the coagulating basin being connected simultaneously with comprehensive pool and broken cyanide pond and broken chromium device, the precipitation component being connected with the coagulating basin, the first intermediate pool being connected with the precipitation component, the sludge-tank being connected with the precipitation component, with first intermediate pool（8）The filter assemblies being connected.High concentration effluent containing heavy metal ions will be contained and carry out categorised collection, and broken cyanide, the second reducing agent and alkali lye are carried out using hypochlorite and carry out broken chromium, so as to realize the removal of cryanide ion and chromium ion in effluent containing heavy metal ions containing high concentration, simple in construction, cost is relatively low.

Description

A kind of processing system of the effluent containing heavy metal ions containing high concentration

Technical field

The utility model belongs to field of waste water treatment, and in particular to a kind of processing system of effluent containing heavy metal ions containing high concentration System.

Background technology

With the development and the progress of science and technology of society, people are more and more deep in the exploration of chemical field.But along with The synthesizing of a variety of new chemical materials, various emerging techniques come into operation, various complicated, high concentration industrial production wastewaters Also produce therewith.

Electroplating technology（Electroplating）Exactly using electrolysis principle plated on some metal surfaces a thin layer its The process of its metal or alloy, is the work for the surface attachment layer of metal film for making metal or other materials product using electrolysis Skill prevents metal from aoxidizing so as to play（Such as corrosion）, improve wearability, electric conductivity, reflective, corrosion resistance（Copper sulphate etc.）And Having improved aesthetic appearance etc. is acted on.The source of electroplating technology waste water is generally：（1）Plating piece rinse water,（2）Spent plating bath,（3）Other give up Water, including wash away mill floor, scrubs pole plate wash water, ventilation equipment condensed water, and due to coating bath seepage or operational administrative not Various tank liquors and draining when " run, drip, leak " caused；（4 component cooling waters, cooling water removes temperature liter in use Beyond height, pollution is not affected by.Process conditions, production of the water quality, water of the effluent containing heavy metal ions containing high concentration with electroplating production The factors such as load, operational administrative and water use model are relevant.The water quality of the effluent containing heavy metal ions containing high concentration is complicated, and composition is not easily-controllable System, wherein containing the heavy metal ion such as chromium, cadmium, nickel, copper, zinc, gold, silver and cyanide etc., some belong to carcinogenic, teratogenesis, cause it is prominent The extremely toxic substance of change.Accordingly, it would be desirable to be handled effluent containing heavy metal ions containing high concentration to mitigate the pollution to environment.

The content of the invention

The utility model purpose is to provide a kind of heavy metal ion containing high concentration in order to overcome the deficiencies in the prior art and give up The processing system of water.

To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of effluent containing heavy metal ions containing high concentration Processing system, it includes being respectively used to collecting the comprehensive pool of comprehensive wastewater, the cyanogen pond for collecting cyanide wastewater, for collecting The chromium pond of chromate waste water, be connected with the cyanogen pond for remove cryanide ion in cyanide wastewater broken cyanide pond, with the chromium pond It is connected for removing the broken chromium device of chromium ion in chromate waste water, while being connected with comprehensive pool and broken cyanide pond and broken chromium device Logical coagulating basin, the precipitation component being connected with the coagulating basin, the first intermediate pool being connected with the precipitation component, with It is described to precipitate the sludge-tank that component is connected, the filter assemblies being connected with first intermediate pool.

Optimally, the precipitation component includes the primary clarifier being connected with the coagulating basin and the primary precipitation The second intermediate pool that pond is connected, the more medium filter being connected with second intermediate pool, with the multimedium mistake The 3rd intermediate pool that filter is connected, the second-level settling pond being connected with the 3rd intermediate pool, the second-level settling pond It is connected with the first intermediate pool, the sludge-tank is connected with the primary clarifier and the second-level settling pond respectively.

Optimally, the filter assemblies include quartz filter, cartridge filter, the activated carbon filtering being sequentially communicated Device, heavy metal chelating tank and accurate filter.

Further, in the broken cyanide pond, the broken chromium device, the coagulating basin, the primary clarifier, the described 3rd Between pond, the second-level settling pond, the active carbon filter be also respectively connected with a set of dosing tank.

Optimally, the sludge-tank is connected with the forcing press for excluding sludge.

Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：The utility model The processing system of the effluent containing heavy metal ions containing high concentration, on the one hand using comprehensive pool, cyanogen pond, chromium pond will contain high concentration heavy metal from Sub- waste water carries out categorised collection, and realizes in broken cyanide pond and broken chromium device removal, the reduction of chromium ion to cryanide ion；It is another Aspect realizes the precipitation of chromium ion, so as to realize using the mutual cooperation of coagulating basin, precipitation component, the first intermediate pool etc. The processing of the effluent containing heavy metal ions containing high concentration, simple in construction, cost is low, suitable for large-scale production.

Brief description of the drawings

Accompanying drawing 1 is the structural representation of the utility model effluent containing heavy metal ions containing high concentration processing system；

Wherein, 1, comprehensive pool；2nd, cyanogen pond；3rd, chromium pond；4th, broken cyanide pond；5th, chromium device is broken；6th, coagulating basin；7th, component is precipitated； 71st, primary clarifier；72nd, the second intermediate pool；73rd, more medium filter；74th, the 3rd intermediate pool；75th, second-level settling pond； 8th, the first intermediate pool；9th, sludge-tank；10th, filter assemblies；101st, quartz filter；102nd, cartridge filter；103rd, it is active Carbon filter；104th, heavy metal chelating tank；105th, accurate filter；11st, dosing tank；12nd, pump；13rd, forcing press.

Embodiment

Shown embodiment is further described to the utility model below in conjunction with the accompanying drawings.

According to electroplating technology, as shown in figure 1, will contain high concentration effluent containing heavy metal ions is divided into comprehensive wastewater, cyanide wastewater It is collected processing respectively with chromate waste water, is collected in respectively in comprehensive pool 1, cyanogen pond 2 and chromium pond 3.The wherein waste water of comprehensive pool 1 Directly imported with pump 12 in coagulating basin 6；And corresponding waste water is then directed respectively into broken cyanide pond 4 and broken with pump 12 in cyanogen pond 2 and chromium pond 3 In chromium device 5, they connect a set of dosing tank 11 respectively.So hydrogen can be added using a set of dosing tank 11 into broken cyanide pond 4 Potassium oxide or sodium hydroxide cause in broken cyanide pond 4 pH value of waste water to more than 10, then under conditions of being stirred continuously thereto It is 2 ~ 4 to add sodium hypochlorite or postassium hypochlorite to the ratio between its concentration and cyanogen concentration:1（I.e. the mol ratio of hypochlorite and cyanogen be 2 ~ 4:1）, reaction 10 ~ 30 minutes is so that cryanide ion is converted into CNO in the basic conditions^-；Then acid solution regulation is added thereto contains cyanogen PH value of waste water is to 6 ~ 8, and it is 6 ~ 8 to continuously add sodium hypochlorite or postassium hypochlorite to the ratio between its concentration and cyanogen concentration:1（That is hypochlorous acid The mol ratio of salt and cyanogen is 6 ~ 8:1）, reaction now deposits so that cryanide ion is thoroughly converted into nitrogen for 10 ~ 30 minutes in solution There is very strong oxidisability, it is necessary to use the first reducing agent in excessive hypochlorite（Sulphite or thiosulfate etc. are weak Oxidant）Carry out that chlorine can be produced during redox reaction, redox reaction, therefore the first reducing agent added is used Amount can according to be it is enough generation bubble judged, i.e. the first reducing agent added to no longer generation bubble produce broken cyanide waste water.Profit It is 2 ~ 5 that acid solution regulation chromate waste water pH value can be added into broken chromium device 5 with another set of dosing tank 11, in the bar being stirred continuously The second reducing agent is added under part thereto（Sulphite, pyrosulfite or ferrous salt etc.）So that the concentration of the second reducing agent It is 3 ~ 5 with the ratio between chromium concn:1, reaction 10 ~ 60 minutes by chromium ion so that be reduced to Cr³⁺；Added again into the chromate waste water Alkali lye（Sodium hydroxide, potassium hydroxide, sodium carbonate etc.）Chrome waste water is produced brokenly to there is no precipitation generation.

Then obtained broken chrome waste water, broken cyanide waste water are imported in coagulating basin 6 also by pump 12 and mixed with comprehensive wastewater Close, coagulating basin 6 is connected with a set of dosing tank 11, for added into coagulating basin 6 coagulant and flocculant and with above-mentioned three kinds Waste water is sufficiently mixed, and then imports primary clarifier 71 with pump 12（Primary clarifier 71 can connect a set of dosing tank 11, For adding coagulant or flocculant into primary clarifier 71, further precipitate）Middle carry out preliminary sedimentation, forms the first supernatant Liquid and the first precipitation, the first precipitation are introduced directly into sludge-tank 9；First supernatant, which is then first imported in the second intermediate pool 71, to be delayed Punching, is then imported by pump 12 and is filtered in more medium filter 73, then imported the 3rd intermediate pool 74 and cached（3rd Intermediate pool 74 can connect a set of dosing tank 11, for adding coagulant or flocculant into the 3rd intermediate pool 74, enter one Step precipitation）, second-level settling pond 75 is then imported by pump 12（Second-level settling pond 75 can connect a set of dosing tank 11, for Coagulant or flocculant are added in second-level settling pond 75, further precipitation）Middle carry out two-stage precipitation, forms the second supernatant and the Two precipitations（Primary clarifier 71, the second intermediate pool 72, more medium filter 73, the 3rd intermediate pool 74, second-level settling pond 75 It is in turn connected to form precipitation component 7）, the second precipitation is introduced directly into sludge-tank 9, then carries out solid-liquid with the importing forcing press of pump 12 Separation, the solid matter of generation, which is handed over, qualification processed in units；Second supernatant is then imported in the first intermediate pool 8, is led with pump 12 Enter in quartz filter 101, then import cartridge filter 102, active carbon filter 103 successively again（Active carbon filter 103 can connect a set of dosing tank 11, for adding coagulant or flocculant thereto, further precipitation）, heavy metal chelating tank 104 and accurate filter 105 in further increase water quality（It is the quartz filter 101 that is sequentially communicated, cartridge filter 102, living Property carbon filter 103, heavy metal chelating tank 104 and accurate filter 105 constitute filter assemblies 10）, final standard discharge.

Above-described embodiment is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with technique Personage can understand content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this. All equivalent change or modifications made according to the utility model Spirit Essence, should all cover protection domain of the present utility model it It is interior.

Claims (4)

1. a kind of processing system of effluent containing heavy metal ions containing high concentration, it is characterised in that：It includes being respectively used to collect integrating The comprehensive pool (1) of waste water, the cyanogen pond (2) for collecting cyanide wastewater, the chromium pond (3) for collecting chromate waste water and the cyanogen Pond (2) is connected for removing the broken cyanide pond (4) of cryanide ion in cyanide wastewater, be connected with the chromium pond (3) contains for removing The broken chromium device (5) of chromium ion in chrome waste water, while being connected with comprehensive pool (1) and broken cyanide pond (4) and broken chromium device (5) In coagulating basin (6), the precipitation component (7) being connected with the coagulating basin (6), first be connected with the precipitation component (7) Between pond (8), the sludge-tank (9) being connected with the precipitation component (7), the mistake that is connected with first intermediate pool (8) Filter component (10).

2. the processing system of the effluent containing heavy metal ions according to claim 1 containing high concentration, it is characterised in that：The precipitation Primary clarifier (71) that component (7) includes being connected with the coagulating basin (6), it is connected with the primary clarifier (71) Second intermediate pool (72), the more medium filter (73) being connected with second intermediate pool (72) and the multimedium The 3rd intermediate pool (74) that filter (73) is connected, the second-level settling pond being connected with the 3rd intermediate pool (74) (75), the second-level settling pond (75) is connected with the first intermediate pool (8), and the sludge-tank (9) is heavy with the primary respectively Shallow lake pond (71) is connected with the second-level settling pond (75).

3. the processing system of the effluent containing heavy metal ions according to claim 1 containing high concentration, it is characterised in that：The filtering Component (10) includes the quartz filter (101), cartridge filter (102), active carbon filter (103), again being sequentially communicated Metal capture pot (104) and accurate filter (105).

4. the processing system of the effluent containing heavy metal ions according to claim 1 containing high concentration, it is characterised in that：The sludge Pond (9) is connected with the forcing press (13) for excluding sludge.