Copper mine acid waste water processes retracting device
Technical field
The utility model relates to copper mine acid waste water and process retracting device, belong to the technical field of Industrial Wastewater Treatment.
Background technology
Copper mine acid waste water, essentially from copper mine produced waste water after biological dump leaching, has pH low, containing various ions and float and mineral wet goods Organic substance, and wastewater flow rate is big, time of flow is long, and drainage point disperses, water quality and the water yield big feature of fluctuation.Simple neutralisation treatment or sulfide precipitation method can not meet the increasingly tighter environmental protection process requirement to copper mine waste water at present, not only waste substantial amounts of water resource, and can surrounding aqueous environment be polluted.Need new copper mine acid waste water treatment for reuse technology to reach to eliminate the harm of copper mine acid waste water, preserve the ecological environment, make the purpose that water resource is fully used.
Summary of the invention
The utility model proposes a kind of copper mine acid waste water and process retracting device, it is directed to utilize copper mine spent acidic water treatment system, copper mine acid waste water advanced treatment system, copper mine acid waste water sludge treating system that copper mine acid waste water is carried out treatment for reuse.Before processing, the main water quality of copper mine acid waste water is: pH:2~4, H2SO4(sulphuric acid): 400~2000mg/L, As(arsenic): 20~200mg/L, Cu(copper): 2~50mg/L, Pb(are plumbous): 2~50mg/L, Zn(zinc): 10~100mg/L, Fe(ferrum): 50~200mg/L, F(fluoride): 10~50mg/L, Cl-(chloride): 1000~4000mg/L, and the Ti(thallium of trace).Copper mine acid waste water meets the requirement (wherein As(arsenic) of " copper, nickel, cobalt emission of industrial pollutants standard " (GB25467-2010) table 3 special emission limit of water pollutant after copper mine spent acidic water treatment system processes: 0.1mg/L, Cu(copper): 0.2mg/L, Pb(is plumbous): 0.2mg/L, Zn(zinc): 1.0mg/L, F(fluoride): 2mg/L), use water is prepared as the medicament of Sewage Disposal in process rear section, and all the other water outlets enter copper mine acid waste water advanced treatment system and carry out advanced treating;And the water outlet after advanced treating is fully achieved the requirement of circulating cooling make-up water, its water quality index be better than " Code for design of industrial recirculating cooling water treatment " (GB50050-2007) 6.1.3 Standard of reclaimed water (wherein pH:7.0~8.5, Cl-250mg/L, TDS 1000mg/L), by advanced treating effluent reuse to circulation, reach to eliminate heavy metal pollution, the purpose simultaneously economized on water again.
Technical solution of the present utility model: copper mine acid waste water processes retracting device, and its structure includes copper mine spent acidic water treatment system (1), copper mine acid waste water advanced treatment system (2), copper mine acid waste water sludge treating system (3);Wherein copper mine spent acidic water pipe A accesses the water inlet of copper mine spent acidic water treatment system (1), the water outlet F of copper mine spent acidic water treatment system (1) receives the water inlet of copper mine acid waste water advanced treatment system (2), the spoil disposal G of copper mine spent acidic water treatment system (1) receives the mud inlet of copper mine acid waste water sludge treating system (3), the filtrate backflow H of copper mine acid waste water sludge treating system (3) is also coupled to the water inlet of copper mine spent acidic water treatment system (1), and copper mine acid waste water sludge treating system (3) is connected to mud cake outward transport B;The backwash recirculation water E of copper mine acid waste water advanced treatment system (2) receives the recirculation water import of copper mine spent acidic water treatment system (1), copper mine acid waste water advanced treatment system (2) is connected to return water pipe C, the strong brine D of copper mine acid waste water advanced treatment system (2) and delivers to other copper mine sewerage disposing and reclaim Zero discharging system and be further processed.
Advantage of the present utility model:
1) it is designed for the copper mine acid waste water feature containing heavy metal contaminants;
2) the sectional-regulated pH of Calx, oxidant, flocculant is utilized, by heavy metal precipitation;
3) electricity flocculation is utilized to remove the heavy metal of residual further, it is ensured that treatment effect;
4) ultrafiltration, reverse osmosis membrane system desalination advanced treating are utilized so that water outlet reaches the requirement of recycle-water;
5) elimination heavy metal pollution it is finally reached, again the purpose of recycle-water resource.
Accompanying drawing explanation
Accompanying drawing 1 is the population structure schematic diagram of copper mine spent acidic water handling reclamation set.
Accompanying drawing 2 is the structural representation of copper mine spent acidic water treatment system and sludge treating system.
Accompanying drawing 3 is the structural representation of copper mine acid waste water advanced treatment system.
Accompanying drawing 4 is the process flow diagram of copper mine spent acidic water handling reclamation set embodiment.
WWT in accompanying drawing represents that copper mine spent acidic water treatment system (1), AWT represent that copper mine acid waste water advanced treatment system (2), ST represent copper mine acid waste water sludge treating system (3);A represents that copper mine acid waste water, B represent that mud cake outward transport, C represent that recycle-water, D represent that strong brine, E represent that the backwash recirculation water of copper mine acid waste water advanced treatment system, F represent that the process water outlet of copper mine spent acidic water treatment system, G represent that the spoil disposal of copper mine spent acidic water treatment system, H represent the filtrate backflow of copper mine acid waste water sludge treating system;T1Represent copper mine acid waste water regulating reservoir (1-01), T2Represent intermediate pool (1-13), T3Represent the former pond of copper mine acid waste water advanced treating (2-01), T4Represent that pond (2-06), T are produced in ultrafiltration5Represent reverse osmosis produced pond (2-09);PN represents preneutralization groove (1-02), N1Represent one section of neutralization chamber (1-03), N2Represent two-stage nitration neutralization chamber (1-06), N3Represent three sections of neutralization chambers (1-09);S1Represent one section of sedimentation tank (1-05), S2Represent two-stage nitration sedimentation tank (1-07), S3Represent three sections of sedimentation tanks (1-10), S4Represent coagulative precipitation tank (1-15);O1Represent stair oxidation reactive tank (1-04), O2Represent that secondary oxidation reactive tank (1-08), PHD represent that pH regulator groove (1-11), EF represent electricity flocculation apparatus (1-12), R1Represent flocculation tank (1-14);D1Represent 1# Lime-Injecting equipment (1-17), D2Represent Calx and FeSO4(ferrous sulfate) adding equipment (1-18), D3Represent 2# Lime-Injecting equipment (1-20), D4Represent 3# Lime-Injecting equipment (1-22), D5Represent acid adding equipment (1-23), D6Represent PAC/PAM/Na2CO3(coagulant/flocculation aid/sodium carbonate) adding equipment (1-24), D7Represent PAM adding equipment (3-04), D8Represent PAC/ antibacterial adding equipment (2-11), D9Represent acid/base/antibacterial adding equipment (2-14), D10Represent antisludging agent/reducing agent adding equipment (2-12);SW represents that collection mud sump (3-01), SC represent that sludge concentration tank (3-02), SD represent sludge filter press (3-03);P1Represent regulating reservoir elevator pump (1-25), P2Represent intermediate pool elevator pump (1-26), P3Represent sludge lifting pump (3-05), P4Represent mud pressurization screw pump (3-06), P5Represent advanced treating elevator pump (2-15), P6Represent more medium filter backwashing pump (2-16), P7Represent hyperfiltration reverse-rinsing pump (2-18), P8Represent reverse osmosis force (forcing) pump (2-19), P9Represent reverse osmosis high-pressure pump (2-20), P10Represent reuse water pump (2-21);OD represents sodium hypochlorite adding equipment (1-21), A1Represent that 1# compresses air (1-19), A2Represent that 2# compresses air (2-13), B1Represent roots blower (2-17);HE represents that heat exchanger (2-02), MMF represent that more medium filter (2-03), AF represent that self-cleaning filter (2-04), UF represent that ultrafiltration apparatus (2-05), SAF represent that cartridge filter (2-07), RO represent that reverse osmosis unit (2-08), ZQ represent steam (2-10).
Detailed description of the invention
Comparison accompanying drawing 1, copper mine spent acidic water handling reclamation set, its structure includes copper mine spent acidic water treatment system (1), copper mine acid waste water advanced treatment system (2), copper mine acid waste water sludge treating system (3);Wherein copper mine spent acidic water pipe A receives the water inlet of copper mine spent acidic water treatment system (1), the water outlet F of copper mine spent acidic water treatment system (1) receives the water inlet of copper mine acid waste water advanced treatment system (2), the spoil disposal G of copper mine spent acidic water treatment system (1) receives the mud inlet of copper mine acid waste water sludge treating system (3), the filtrate backflow H of copper mine acid waste water sludge treating system (3) is also coupled to the water inlet of copper mine spent acidic water treatment system (1), and copper mine acid waste water sludge treating system (3) is connected to mud cake outward transport B;The backwash recirculation water E of copper mine acid waste water advanced treatment system (2) receives the recirculation water import of copper mine spent acidic water treatment system (1), copper mine acid waste water advanced treatment system (2) is connected to reuse water pipe C, the strong brine D of copper mine acid waste water advanced treatment system (2) and delivers to other copper mine sewerage disposing reuse Zero discharging system and be further processed.
Comparison accompanying drawing 2, copper mine spent acidic water treatment system (1), its structure includes copper mine acid waste water regulating reservoir (1-01), preneutralization groove (1-02), one section of neutralization chamber (1-03), stair oxidation reactive tank (1-04), one section of sedimentation tank (1-05), two-stage nitration neutralization chamber (1-06), two-stage nitration sedimentation tank (1-07), secondary oxidation reactive tank (1-08), three sections of neutralization chambers (1-09), three sections of sedimentation tanks (1-10), pH regulator groove (1-11), electricity flocculation apparatus (1-12), intermediate pool (1-13), flocculation tank (1-14), coagulative precipitation tank (1-15), 1# Lime-Injecting equipment (1-17), Calx and FeSO4(ferrous sulfate) adding equipment (1-18), 1# compress air (1-19), 2# Lime-Injecting equipment (1-20), sodium hypochlorite adding equipment (1-21), 3# Lime-Injecting equipment (1-22), acid adding equipment (1-23), PAC/PAM/Na2CO3(coagulant/flocculation aid/sodium carbonate) adding equipment (1-24), regulating reservoir elevator pump (1-25), intermediate pool elevator pump (1-26);Wherein the filtrate backflow H of copper mine acid waste water A and copper mine acid waste water sludge treating system receives the water inlet of copper mine acid waste water regulating reservoir (1-01), the outlet of copper mine acid waste water regulating reservoir (1-01) receives the water inlet of preneutralization groove (1-02) by regulating reservoir elevator pump (1-25), the medicine outlet of 1# Lime-Injecting equipment (1-17) receives the feeding opening of preneutralization groove (1-02), the outlet of preneutralization groove (1-02) receives the water inlet of one section of neutralization chamber (1-03), Calx and FeSO4nullThe medicine outlet of (ferrous sulfate) adding equipment (1-18) receives the feeding opening of one section of neutralization chamber (1-03),The outlet of one section of neutralization chamber (1-03) receives the water inlet of stair oxidation reactive tank (1-04),1# compresses air (1-19) and receives the air inlet of stair oxidation reactive tank (1-04),The outlet of stair oxidation reactive tank (1-04) receives the water inlet of one section of sedimentation tank (1-05),The outlet of one section of sedimentation tank (1-05) receives the water inlet of two-stage nitration neutralization chamber (1-06),The medicine outlet of 2# Lime-Injecting equipment (1-20) receives the feeding opening of two-stage nitration neutralization chamber (1-06),The outlet of two-stage nitration neutralization chamber (1-06) receives the water inlet of two-stage nitration sedimentation tank (1-07),The outlet of two-stage nitration sedimentation tank (1-07) receives the water inlet of secondary oxidation reactive tank (1-08),The medicine outlet of sodium hypochlorite adding equipment (1-21) receives the feeding opening of secondary oxidation reactive tank (1-08),The outlet of secondary oxidation reactive tank (1-08) receives the water inlet of three sections of neutralization chambers (1-09),The medicine outlet of 3# Lime-Injecting equipment (1-22) receives the feeding opening of three sections of neutralization chambers (1-09),The outlet of three sections of neutralization chambers (1-09) receives the water inlet of three sections of sedimentation tanks (1-10),The outlet of three sections of sedimentation tanks (1-10) receives the water inlet of pH regulator groove (1-11),The medicine outlet of acid adding equipment (1-23) receives the feeding opening of pH regulator groove (1-11),The outlet of pH regulator groove (1-11) receives the water inlet of electricity flocculation apparatus (1-12),The outlet of electricity flocculation apparatus (1-12) receives the water inlet of intermediate pool (1-13),The outlet of intermediate pool (1-13) receives the water inlet of flocculation tank (1-14) by intermediate pool elevator pump (1-26),The backwash recirculation water E of copper mine acid waste water advanced treatment system is also coupled to the water inlet of flocculation tank (1-14),PAC/PAM/Na2CO3The medicine outlet of (coagulant/flocculation aid/sodium carbonate) adding equipment (1-24) receives the feeding opening of flocculation tank (1-14), the outlet of flocculation tank (1-14) receives the water inlet of coagulative precipitation tank (1-15), and coagulative precipitation tank (1-15) is connected to the process water outlet F of copper mine spent acidic water treatment system;The mud mouth of one section of sedimentation tank (1-05), the mud mouth of two-stage nitration sedimentation tank (1-07), the mud mouth of three sections of sedimentation tanks (1-10), the electric mud mouth of flocculation apparatus (1-12), the mud mouth of coagulative precipitation tank (1-15) all receive the spoil disposal G of copper mine spent acidic water treatment system.
Comparison accompanying drawing 2, copper mine acid waste water sludge treating system (3), its structure includes collection mud sump (3-01), sludge concentration tank (3-02), sludge filter press (3-03), PAM adding equipment (3-04), sludge lifting pump (3-05), mud pressurization screw pump (3-06);Wherein the spoil disposal G of copper mine spent acidic water treatment system receives the mud inlet of collection mud sump (3-01), the mud mouth of collection mud sump (3-01) receives the mud inlet of sludge concentration tank (3-02) by sludge lifting pump (3-05), the mud mouth of sludge concentration tank (3-02) receives the mud inlet of sludge filter press (3-03) by the mud screw pump (3-06) that pressurizes, the medicine outlet of PAM adding equipment (3-04) is also coupled to the mud inlet of sludge filter press (3-03), the supernatant outlet of sludge concentration tank (3-02) and the filtrate (liquid of sludge filter press (3-03) are connected to the filtrate backflow H of copper mine acid waste water sludge treating system, sludge filter press (3-03) is connected to mud cake outward transport B.
nullComparison accompanying drawing 3,Copper mine acid waste water advanced treatment system (2),Its structure includes the former pond of copper mine acid waste water advanced treating (2-01)、Heat exchanger (2-02)、More medium filter (2-03)、Self-cleaning filter (2-04)、Ultrafiltration apparatus (2-05)、Is produced from pond (2-06) in ultrafiltration、Cartridge filter (2-07)、Reverse osmosis unit (2-08)、Reverse osmosis produced pond (2-09)、Steam (2-10)、PAC/ antibacterial adding equipment (2-11)、Antisludging agent/reducing agent adding equipment (2-12)、2# compresses air (2-13)、Acid/base/antibacterial adding equipment (2-14)、Advanced treating elevator pump (2-15)、More medium filter backwashing pump (2-16)、Roots blower (2-17)、Hyperfiltration reverse-rinsing pump (2-18)、Reverse osmosis force (forcing) pump (2-19)、Reverse osmosis high-pressure pump (2-20)、Reuse water pump (2-21);nullWherein the process water outlet F of copper mine spent acidic water treatment system receives the water inlet of the former pond of copper mine acid waste water advanced treating (2-01),The outlet in the former pond of copper mine acid waste water advanced treating (2-01) receives the water inlet of heat exchanger (2-02) and the backwash water import of more medium filter (2-03) respectively through advanced treating elevator pump (2-15) and more medium filter backwashing pump (2-16),Steam (2-10) receives the steam inlet of heat exchanger (2-02),The outlet of heat exchanger (2-02) receives the water inlet of more medium filter (2-03),The medicine outlet of PAC/ antibacterial adding equipment (2-11) is also coupled to the water inlet of more medium filter (2-03),The air outlet of roots blower (2-17) receives the backwash air inlet of more medium filter (2-03),The outlet of more medium filter (2-03) receives the water inlet of self-cleaning filter (2-04),The outlet of self-cleaning filter (2-04) receives the water inlet of ultrafiltration apparatus (2-05),The backwash outlet of more medium filter (2-03)、The self-cleaning outlet of self-cleaning filter (2-04)、The backwash outlet of ultrafiltration apparatus (2-05) all receives the backwash recirculation water E of copper mine acid waste water advanced treatment system,2# compresses air (2-13) and receives the backwash air inlet of ultrafiltration apparatus (2-05),The outlet of ultrafiltration apparatus (2-05) is received ultrafiltration and is produced the water inlet in pond (2-06),Ultrafiltration is produced the outlet in pond (2-06) and is received the backwash water inlet of ultrafiltration apparatus (2-05) and the water inlet of cartridge filter (2-07) respectively through hyperfiltration reverse-rinsing pump (2-18) and reverse osmosis force (forcing) pump (2-19),The medicine outlet of acid/base/antibacterial adding equipment (2-14) is also coupled to the backwash water inlet of ultrafiltration apparatus (2-05),The medicine outlet of antisludging agent/reducing agent adding equipment (2-12) is also coupled to the water inlet of cartridge filter (2-07),The outlet of cartridge filter (2-07) receives the water inlet of reverse osmosis unit (2-08) by reverse osmosis high-pressure pump (2-20),The product water out of reverse osmosis unit (2-08) receives the water inlet of reverse osmosis produced pond (2-09),The outlet in reverse osmosis produced pond (2-09) is connected to recycle-water C by reuse water pump (2-21),The dense water out of reverse osmosis unit (2-08) is connected to strong brine D.
Copper mine acid waste water processes recovery method, comprises the steps:
(1) copper mine acid waste water processes:
1. each stock acid waste water flows into acid waste water regulating reservoir, the adjustment of water quality and quantity is carried out in regulating reservoir, waste water after adjustment, by being pumped into acid waste water preneutralization groove, adds (concentration is 10%) lime cream in acid waste water preneutralization groove and carries out the neutralization adjustment of pH value, and controlling pH is 3.8~4.2;
2. the water outlet of acid waste water preneutralization groove enters one section of neutralization chamber, (concentration is 1%) lime cream and ferrous sulfate is added in groove, controlling pH is 6.8~7.2, mixed liquor flow to stair oxidation reactive tank, in groove, pass into air aoxidize, be oxidized to pentavalent arsenic oxidation of ferrous iron to ferric iron, trivalent arsenic, precipitate subsequently into one section of sedimentation tank, sludge from sedimentation tank enters collection mud sump, and supernatant enters two-stage nitration neutralization chamber;
3. adding (concentration is 1%) lime cream in two-stage nitration neutralization chamber, controlling pH is 7.8~8.2, then enters two-stage nitration sedimentation tank, and two-stage nitration sludge from sedimentation tank enters collection mud sump, and supernatant enters secondary oxidation reactive tank;
4. adding sodium hypochlorite in secondary oxidation reactive tank to aoxidize, monovalence thallium is oxidized to trivalent thallium, carry out air stirring simultaneously and prevent precipitation, water outlet enters three sections of neutralization chambers;
5. in three sections of neutralization chambers, add (concentration is 1%) lime cream, controlling pH is 8.8~9.2, then enters three sections of sedimentation tank precipitations, and trivalent thallium can generate the thallium hydroxide precipitate being insoluble in water in the basic conditions, sludge from sedimentation tank enters collection mud sump, and supernatant enters pH regulator pond;
6. adding acid in pH regulator pond, readjustment pH is to neutral, and then waste water enters electricity flocculation apparatus, and under the electric field action of electricity flocculation system, metal ion forms Zn (OH) further2、Pb(OH)2Deng the hydroxide formation flco gel sinking of precipitate, precipitated metal thing and a small amount of metaarsenous acid calcium with ferrum (or aluminum), thus reaching the purpose of co-precipitation, calcium ions and magnesium ions concentration is greatly reduced simultaneously, the problem solving cleaning system recycle-water fouling;
7. the water outlet of electricity flocculation unit enters intermediate pool, is promoted to flocculation tank through pump, adds a small amount of Na in flocculation tank2CO3(10~70mg/L), PAC(20~80mg/L), PAM(0.5~4mg/L), through flocculation after sewage self-flowing enter coagulative precipitation tank;
8. in coagulative precipitation tank, making the floccule body precipitation in sewage remove by gravitational settling effect, the precipitating sludge bottom coagulative precipitation tank enters collection mud sump, and supernatant then penetration depth processes former pond.
(2) copper mine acid waste water advanced treating:
Utilizing the former water elevator pump pressurization of advanced treating to pass sequentially through heat exchanger heating, more medium filter, self-cleaning filter, ultra-filtration filters, after filter, water enters ultrafiltration and produces water tank;Add PAC(10~50mg/L before more medium filter), NaClO(5~20mg/L), and be periodically subject to air water backwash, ultrafiltration utilizes HCl, NaClO and air to carry out the online backwash in cycle;More medium filter, self-cleaning filter, ultrafiltration backwash water return coagulation reaction tank reprocessing;The ultrafiltration product pressurized pump of water, cartridge filter, high-pressure pump enter reverse osmosis and carry out desalting processing, antisludging agent (2~4mg/L), reducing agent (1~5mg/L), non oxidizing bactericide (5~20mg/L) is added before cartridge filter, reverse osmosis produced Water circulation, reverse osmosis concentrated water removes strong brine zero-discharge treatment system.
(3) copper mine acid waste water Treatment of Sludge:
One section of sludge from sedimentation tank, two-stage nitration sludge from sedimentation tank, three sections of sludge from sedimentation tank, electricity flocculation apparatus spoil disposal, coagulative precipitation tank spoil disposals enter collection mud sumps, are provided with stirring in collection mud sump, each several part mud mix homogeneously prevent mud from hardening in sump;Mud in collection mud sump promotes through pump, enter sludge concentration tank to concentrate, reduce the moisture content of mud, regulating reservoir is removed in supernatant overflow, mud after concentration pressurizes through screw pump and adds PAM(1~5mg/L), sending into filter press and carry out mechanical dehydration, the mud cake outward transport after dehydration, filtrate is then flowed back to regulating reservoir and is re-started process.
Described step (1) copper mine acid waste water passes through copper mine spent acidic water treatment system, and specifically copper mine acid waste water passes sequentially through copper mine acid waste water regulating reservoir T1, regulating reservoir elevator pump P1, preneutralization groove PN, one section of neutralization chamber N1, stair oxidation reactive tank O1, one section of sedimentation tank S1, two-stage nitration neutralization chamber N2, two-stage nitration sedimentation tank S2, secondary oxidation reactive tank O2, three sections of neutralization chamber N3, three sections of sedimentation tank S3, pH regulator groove PHD, electricity flocculation apparatus EF, intermediate pool T2, intermediate pool elevator pump P2, flocculation tank R1, coagulative precipitation tank S4Until the process water outlet F of copper mine spent acidic water treatment system;Wherein each stock acid waste water A(includes the filtrate backflow H of copper mine acid waste water sludge treating system) at copper mine acid waste water regulating reservoir T1Inside carry out the adjustment of water quality and quantity, and by regulating reservoir elevator pump P1Send into acid waste water preneutralization groove PN process;1# Lime-Injecting equipment D is utilized in acid waste water preneutralization groove PN1Adding (concentration is 10%) lime cream and carry out the neutralization adjustment of pH value, controlling pH is 3.8~4.2;At one section of neutralization chamber N1Utilize Calx and FeSO4(ferrous sulfate) adding equipment D2Adding (concentration is 1%) lime cream and ferrous sulfate, controlling pH is 6.8~7.2;At stair oxidation reactive tank O1Pass into 1# and compress air A1Aoxidize, be oxidized to pentavalent arsenic oxidation of ferrous iron to ferric iron, trivalent arsenic, subsequently into one section of sedimentation tank S1;At one section of sedimentation tank S1Precipitate, one section of sedimentation tank S1Spoil disposal G enter collection mud sump, supernatant enter two-stage nitration neutralization chamber N2;At two-stage nitration neutralization chamber N2Utilize 2# Lime-Injecting equipment D3Adding (concentration is 1%) lime cream, controlling pH is 7.8~8.2;At two-stage nitration sedimentation tank S2Precipitate, two-stage nitration sedimentation tank S2Spoil disposal G enter collection mud sump, supernatant enter secondary oxidation reactive tank O2;At secondary oxidation reactive tank O2Utilizing sodium hypochlorite adding equipment OD to add sodium hypochlorite to aoxidize, monovalence thallium is oxidized to trivalent thallium, carry out air stirring simultaneously and prevent precipitation, water outlet enters three sections of neutralization chamber N3;At three sections of neutralization chamber N3Utilize 3# Lime-Injecting equipment D4Adding (concentration is 1%) lime cream, controlling pH is 8.8~9.2;At three sections of sedimentation tank S3Precipitating, trivalent thallium can generate the thallium hydroxide precipitate being insoluble in water in the basic conditions, three sections of sedimentation tank S3Spoil disposal G enter collection mud sump, supernatant enter pH regulator pond PHD;Acid adding equipment D is utilized at pH regulator pond PHD5Adding acid, readjustment pH is to neutral, and then waste water enters electricity flocculation apparatus EF;In electricity flocculation apparatus EF under the electric field action of electricity flocculation system, metal ion forms Zn (OH) further2、Pb(OH)2Deng the hydroxide formation flco gel sinking of precipitate, precipitated metal thing and a small amount of metaarsenous acid calcium with ferrum (or aluminum), thus reaching the purpose of co-precipitation, calcium ions and magnesium ions concentration is greatly reduced simultaneously, the problem solving cleaning system recycle-water fouling;The spoil disposal G of electricity flocculation apparatus EF enters collection mud sump, and the water outlet of electricity flocculation apparatus EF enters intermediate pool T2, it is promoted to flocculation tank R through pump1, at flocculation tank R1In utilize PAC/PAM/Na2CO3(coagulant/flocculation aid/sodium carbonate) adding equipment D6Add a small amount of Na2CO3, PAC, PAM, through flocculation after sewage self-flowing enter coagulative precipitation tank S4;The backwash recirculation water E of copper mine acid waste water advanced treatment system is also into coagulative precipitation tank S4;At coagulative precipitation tank S4In, make the floccule body precipitation in sewage remove, coagulative precipitation tank S by gravitational settling effect4The spoil disposal G of bottom enters collection mud sump, and supernatant is the process water outlet F(penetration depth of copper mine spent acidic water treatment system and processes former pond).
Described step (2) is by copper mine acid waste water advanced treatment system, and specifically the process water outlet F of copper mine spent acidic water treatment system is sequentially connected in series by the former pond T of copper mine acid waste water advanced treating3, advanced treating elevator pump P5, heat exchanger HE, more medium filter MMF, self-cleaning filter AF, ultrafiltration apparatus UF, ultrafiltration produce pond T4, reverse osmosis force (forcing) pump P8, cartridge filter SAF, reverse osmosis high-pressure pump P9, reverse osmosis unit RO, reverse osmosis produced pond T5, until reuse water pump P10Send recycle-water C;Wherein the process water outlet F of copper mine spent acidic water treatment system enters the former pond T of copper mine acid waste water advanced treating3, by advanced treating elevator pump P5Pressurization passes sequentially through heat exchanger HE heating, more medium filter MMF, self-cleaning filter AF, ultrafiltration UF multi-filtering, and after filter, water enters ultrafiltration and produces water tank T4;Utilize steam ZQ heat exchanger HE to heat, before more medium filter MMF, utilize PAC/ antibacterial adding equipment D8Add PAC, NaClO, and regularly utilize more medium filter backwashing pump P6With roots blower B1More medium filter MMF is carried out air water backwash;Ultrafiltration UF utilizes hyperfiltration reverse-rinsing pump P7, acid/base/antibacterial adding equipment D9, 2# compress air A2Ultrafiltration UF is carried out the online backwash in the cycle of HCl, NaClO and air;More medium filter MMF, self-cleaning filter AF, ultrafiltration UF backwash water E return coagulation reaction tank reprocessing;Pond T is produced in ultrafiltration4In ultrafiltration produce water by reverse osmosis force (forcing) pump P8Pressurize and filter through cartridge filter SAF, and before cartridge filter SAF, utilize antisludging agent/reducing agent adding equipment D10Add antisludging agent, reducing agent, non oxidizing bactericide;Then through reverse osmosis high-pressure pump P9Entering reverse osmosis (RO) and carry out desalting processing, reverse osmosis (RO) produces water by reverse osmosis produced pond T5, reuse water pump P10Sending recycle-water C, the dense water of reverse osmosis (RO) is strong brine D and removes strong brine zero-discharge treatment system.
Described step (3) by copper mine acid waste water sludge treating system, specifically one section of sedimentation tank S of copper mine spent acidic water treatment system WWT1, two-stage nitration sedimentation tank S2, three sections of sedimentation tank S3, electricity flocculation apparatus EF, coagulative precipitation tank S4Spoil disposal G be sequentially connected in series by collect mud sump SW, sludge lifting pump P3, sludge concentration tank SC, mud pressurization screw pump P4, sludge filter press SD until output mud cake outward transport B;Wherein it is provided with stirring in collection mud sump SW, each several part mud mix homogeneously prevent mud from hardening in sump;Mud in collection mud sump SW is through sludge lifting pump P3Promoting, enter sludge concentration tank SC and concentrate, reduce the moisture content of mud, the mud after concentration is through mud pressurization screw pump P4Pressurize and utilize PAM adding equipment D7Add PAM, send into sludge filter press SD and carry out mechanical dehydration, after dehydration, send mud cake outward transport B;The filtrate of the supernatant of sludge concentration tank SC and sludge filter press SD is converged into the filtrate backflow H of copper mine acid waste water sludge treating system and is then flowed back to regulating reservoir and re-start process.
Embodiment
Certain Tong Ye company limited sewage treatment and recovery engineering (acid waste water and sulphuric acid district early-stage rainwater part) acid waste water treating stations.
1. design influent quality and the water yield
The sewage total amount of this project copper mine acid waste water presses 1000m3/ d(42m3/ h) design, the source of sewage mainly has:
(1) water: 474m after waste acid process3/ d, containing H2SO4: 0.51g/l, As:50mg/l, Cu:5mg/l, Pb:5mg/l, Zn:55mg/l, Fe:100mg/l, F:20mg/l, Cl:1500mg/l;
(2) mill floor flushing water: 20m3/ d, pH=2;
(3) desulfurization (gypsum) System drainage: 133m3/d;
(4) central laboratory: 5m3/ d, pH=4;
(5) melting is gathered dust flushing water: 5m3/ d, pH=4;
(6) early-stage rainwater in sulphuric acid district and plant area's accident water.
The sulphuric acid district early-stage rainwater amount of first 15 minutes: sulphuric acid district stormwater tank collects 67m3/ time, divided 7 days by pump after the collection of this effluent part and enter spent acidic water treatment system.
2. design effluent quality
After advanced treating, recycle-water is as circulating cooling make-up water, and its water quality index meets " Code for design of industrial recirculating cooling water treatment " (GB50050-2007) 6.1.3 recycled water water quality requirement:
Recycled water water quality index:
Sequence number |
Project |
Unit |
Water Quality Control Indexes |
1 |
pH(25℃) |
|
7.0-8.5 |
2 |
Float |
mg/L |
≤10 |
3 |
Turbidity |
mg/L |
≤5 |
4 |
BOD5 |
mg/L |
≤5 |
5 |
COD |
mg/L |
≤30 |
6 |
Ferrum |
mg/L |
≤0.5 |
7 |
Manganese |
mg/L |
≤0.2 |
8 |
Cl- |
mg/L |
≤250 |
9 |
Calcium hardness is (with CaCO3Meter) |
mg/L |
≤250 |
10 |
Methyl orange alkalinity is (with CaCO3Meter) |
mg/L |
≤200 |
11 |
NH3-N |
mg/L |
≤5 |
12 |
Total phosphorus |
mg/L |
≤1 |
13 |
Soluble solid |
mg/L |
≤1000 |
14 |
Free chlorine |
mg/L |
End 0.1-0.2 |
15 |
Petroleum-type |
mg/L |
≤5 |
16 |
Total number of bacteria |
Individual/ml |
< 1000 |
3. the feature of copper mine acid waste water
Copper mine acid waste water, essentially from copper mine produced waste water after biological dump leaching, has a characteristic that
(1) copper mine acid waste water pH is between 2~4, containing various ions.Additionally, possibly together with float and mineral wet goods Organic substance in these waste water.
(2) wastewater flow rate is big, and the time of flow is long.
(3) drainage point dispersion, water quality and water yield fluctuation are big.
4. waste water treatment process selects
According to the principle of " rain dirt shunting, remove contamination shunting, dual treatment, multi-purpose water ", the waste water after process realizes gradient reuse, it is achieved the overall goals of zero-emission.The early-stage rainwater in the acid waste water of this engineering plant area and sulphuric acid district enters acid waste water treating stations in the lump and processes, first " copper, nickel, cobalt emission of industrial pollutants standard " (GB25467-2010) table 3 standard and " Hunan Province's industrial wastewater thallium pollution thing discharge standard " (DB43/968-2014) is met after process, use water is prepared as the medicament of Sewage Disposal in process rear section, water is supplemented in circulating cooling, not outer row then through fully recovering after acid waste water advanced treating.
Due to main containing acid, containing arsenic, containing heavy metal etc. in the acid waste water of this engineering, the sewage treatment process of design is with this three pollutant for mainly removing target, and the less membrane technology that can pass through advanced treatment unit of remaining other pollutant load is removed.
The waste water treatment process that this engineering is finally selected is:
(1) H in acid waste water2SO4Lime cream is adopted to be neutralized;
(2) hydroxide precipitation method is selected in the removal of the heavy metal ion in acid waste water, is controlled the pH value of waste water by feeding lime breast, adopts multistage to neutralize, at OH-Effect under make heavy metal generate insoluble matter precipitation and remove;
(3) arsenic in waste water adopts Calx ferrous iron method, by add ferrous salt and through aeration agitation, make it be sufficiently mixed reaction, and utilize the oxygen in air that the trivalent arsenic of part is oxidized to pentavalent arsenic, remove through precipitation;
(4) thallium in waste water adopts pre-oxidation coagulant sedimentation, aoxidizes by adding sodium hypochlorite, monovalence thallium is oxidized to trivalent thallium, and trivalent thallium can generate the thallium hydroxide precipitate being insoluble in water in the basic conditions, and then dosing coagulant precipitation is removed;
(5) water outlet after neutralization precipitation then through electricity flocculate workshop section remove metal ion further, it is ensured that heavy metal process up to standard, then remove the float in water further through flocculation sediment;
(6) advanced treating carries out desalination reuse further by ultrafiltration and reverse osmosis membrane technology.
5. technological process
The process flow diagram of copper mine spent acidic water handling reclamation set is referring to accompanying drawing 4.
6. system main design parameters
● civil engineering:
The comprehensive Factory Building of advanced treating includes: between equipment room (more medium filter, self-cleaning filter, ultrafiltration, reverse osmosis, CIP device), dosing, pump house, switchgear house, control room etc..
● capital equipment:
Sequence number |
Device name |
Specifications and models |
Material |
Unit |
Quantity |
1 |
Acid waste water regulating reservoir |
|
|
|
|
1.1 |
Acid waste water regulating reservoir elevator pump |
Anticorrosive anti-wear mortar pump, Q=50m3/ h, H=15m, N=7.5kW |
Steel lining ultra-high molecular mass polyethylene |
Platform |
2 |
1.2 |
Regulating reservoir perforated pipe aerating regulation device |
Nonstandard, perforated tube, service area 54m2/ set |
UPVC |
Set |
1 |
2 |
Acid waste water preneutralization groove |
|
|
|
|
2.1 |
Acid waste water preneutralization groove |
φ 2.4m × 4.2m, V=19m3 |
Carbon steel liner FRP anticorrosion; |
Platform |
1 |
2.2 |
Mixing agitator |
Whipped form: spiral paddle is double-deck;N=1.5kW |
Shaft and blade steel lining glue |
Platform |
1 |
2.3 |
Lime cream measuring tank |
V=2.0m3 |
Carbon steel anticorrosion |
Set |
2 |
2.4 |
Lime cream measuring tank blender |
Rotating speed: 80~120r/min, N=0.55kW |
Axle, impeller SS304 |
Set |
2 |
2.5 |
Lime milk metering pump |
Q=0.46m3/ h, P=0.6Mpa (screw pump), N=0.37kW |
|
Platform |
2 |
3 |
One section of neutralization chamber |
|
|
|
|
3.1 |
One section of neutralization chamber |
φ 2.4m × 4.2m, V=19m3 |
Carbon steel liner FRP anticorrosion |
Platform |
1 9 --> |
3.2 |
Mixing agitator |
Whipped form: spiral paddle is double-deck, N=1.5kW |
Shaft and blade steel lining glue |
Platform |
1 |
3.3 |
Lime cream measuring tank |
V=2.0m3 |
Carbon steel anticorrosion |
Set |
2 |
3.4 |
Lime cream measuring tank blender |
Rotating speed: 80~120r/min, N=0.55kW |
Axle, impeller SS304 |
Set |
2 |
3.5 |
Lime milk metering pump |
Q=0.46m3/ h, P=0.6Mpa (screw pump), N=0.37kW |
|
Platform |
2 |
3.6 |
FeSO4Molten drug slot |
PT-2000L, V=2.0m3 |
PE |
Set |
2 |
3.7 |
FeSO4Measuring tank blender |
JBJ-700, N=0.55kW |
Axle, impeller SS304 |
Set |
2 |
3.8 |
FeSO4Dosing pump |
Q=90L/h, P=0.5MPa, N=0.25kW(VFC) |
Pump head PVC |
Platform |
4 |
4 |
Stair oxidation reaction tank |
|
|
|
|
4.1 |
Perforated pipe aerating regulation device |
Nonstandard, perforated tube, service area 10.8m2/ set |
UPVC |
Set |
1 |
4.2 |
Effluent weir |
5400mm×400mm×2mm |
SS304 |
Part |
1 |
5 |
One section of sedimentation tank |
|
|
|
|
5.1 |
Guide shell and reflecting plate |
Φ0.60m×H 3.0m |
FRP |
Set |
1 |
5.2 |
Effluent weir |
21600mm×400mm×2mm |
SS304 |
Set |
1 |
5.3 |
Walkway board and support platform |
L0.8m×B5.4m |
Carbon steel anticorrosion |
Set |
1 |
6 |
Two-stage nitration neutralization chamber |
|
|
|
|
6.1 |
Two-stage nitration neutralization chamber |
φ 2.4m × 4.2m, V=19m3 |
Carbon steel liner FRP anticorrosion; |
Platform |
1 |
6.2 |
Mixing agitator |
Whipped form: spiral paddle is double-deck;N=1.5kW |
Shaft and blade steel lining glue |
Platform |
1 |
6.3 |
Lime cream measuring tank |
V=2.0m3 |
Carbon steel anticorrosion |
Set |
2 |
6.4 |
Lime cream measuring tank blender |
Rotating speed: 80~120r/min, N=0.55kW |
Axle, impeller SS304 |
Set |
2 |
6.5 |
Lime milk metering pump |
Q=0.46m3/ h, P=0.6Mpa (screw pump), N=0.37kW |
|
Platform |
2 |
7 |
Two-stage nitration sedimentation tank |
|
|
|
|
7.1 |
Guide shell and reflecting plate |
Φ0.60m×H3.0m |
FRP |
Set |
1 |
7.2 |
Effluent weir |
21600mm×400mm×2mm |
SS304 |
Set |
1 |
7.3 |
Walkway board and support platform |
L0.8m×B5.4m |
Carbon steel anticorrosion |
Set |
1 |
8 |
Secondary oxidation reaction tank |
|
|
|
|
8.1 |
Perforated pipe aerating regulation device |
Nonstandard, perforated tube, service area 10.8m2/ set |
UPVC |
Set |
1 |
8.2 |
Effluent weir |
5400mm×400mm×2mm |
SS304 |
Part |
1 |
8.3 |
Sodium hypochlorite dosing tank |
PT-1000L, V=1000L |
PE |
Platform |
2 |
8.4 |
Blender |
JBJ-500, N=0.37kW |
SS304 |
Platform |
2 |
8.5 |
Dosing pump |
Q=50L/h, P=0.5MPa, N=0.25kW |
Compound |
Platform |
4 |
9 |
Three sections of neutralization chambers |
|
|
|
|
9.1 |
Three sections of neutralization chambers |
φ 2.4m × 4.2m, V=19m3 |
Carbon steel liner FRP anticorrosion |
Platform |
1 |
9.2 |
Mixing agitator |
Whipped form: spiral paddle is double-deck;N=1.5kW |
Shaft and blade steel lining glue |
Platform |
1 |
9.3 |
Lime cream measuring tank |
V=2.0m3 |
Carbon steel anticorrosion |
Set |
2 |
9.4 |
Lime cream measuring tank blender |
Rotating speed: 80~120r/min, N=0.55kW |
Axle, impeller SS304 |
Set |
2 |
9.5 |
Lime milk metering pump |
Q=0.46m3/ h, P=0.6Mpa (screw pump), N=0.37kW |
|
Platform |
2 |
10 |
Three sections of sedimentation tanks |
|
|
|
|
10.1 |
Guide shell and reflecting plate |
Φ0.60m×H3.0m |
FRP |
Set |
1 |
10.2 |
Effluent weir |
21600mm×400mm×2mm |
SS304 |
Set |
1 |
10.3 |
Walkway board supports platform |
L0.8m×B5.4m |
Carbon steel anticorrosion |
Set |
1 |
11 |
PH regulator pond |
|
|
|
|
11.1 |
Perforated pipe aerating regulation device |
Nonstandard, perforated tube, service area 10.8m2/ set |
UPVC |
Set |
1 |
11.2 |
Acid-storing barrel |
PT-1000L, V=1.0m3 |
Material PE |
Set |
2 |
11.3 |
H2SO4Dosing pump |
Q=90L/h, P=0.5MPa, N=0.25 kW(VFC) |
Pump head PVC |
Platform |
4 |
11.4 |
Effluent weir |
5400mm×400mm×2mm |
SS304 |
Part |
1 |
12 |
Electricity flocculation unit |
|
|
|
|
12.1 |
Electricity flocculation machine |
Disposal ability 45m3/ h, overall dimensions: 4.2 m × 2.2 m × 3.2m;N=90kW |
Casing carbon steel anticorrosion |
Set |
1 |
12.2 |
Electricity flocculation machine corollary equipment |
PH instrument, air compressor machine, operating platform etc. |
|
Set |
1 |
13 |
Coagulation reaction tank |
|
|
|
|
13.1 |
Mixing agitator |
Whipped form: spiral paddle is double-deck, N=1.5kW |
Shaft and blade steel lining glue |
Platform |
3 |
13.2 |
PAC dosing tank |
PT-1000L, V=1000L, |
PE |
Platform |
2 |
13.3 |
PAC blender |
JBJ-500,0.37kW |
SS304 |
Platform |
2 |
13.4 |
PAC dosing pump |
Q=50L/h, P=0.5MPa, N=0.25kW |
Compound |
Platform |
4 |
13.5 |
The molten drug slot of PAM |
PT-1000L, V=1000L, |
PE |
Platform |
2 |
13.6 |
PAM blender |
JBJ-500,N=0.37kW |
SS304 |
Platform |
2 |
13.7 |
PAM dosing pump |
Q=50L/h, P=0.5MPa, N=0.25kw |
Compound |
Platform |
4 |
14 |
Coagulative precipitation tank |
|
|
|
10 --> |
14.1 |
Guide shell and reflecting plate |
Φ0.60m×H3.0m |
FRP |
Set |
1 |
14.2 |
Effluent weir |
21600mm×400mm×2mm |
SS304 |
Set |
1 |
14.3 |
Walkway board supports platform |
L0.8m×B5.4m |
Carbon steel anticorrosion |
Set |
1 |
15 |
Collection mud sump |
|
|
|
|
15.1 |
Air agitator |
Service area: 9m2/ set |
304 |
Set |
1 |
15.2 |
Sludge lifting pump |
Submersible sewage pump, Q=15m3/ h, H=12m, N=1.1kW, join automatic coupling device |
Cast iron |
Platform |
2 |
16 |
Sludge concentration tank |
|
|
|
|
16.1 |
Sludge concentrator |
WNG-4.54, N=0.55kW |
The SS304 of carbon steel anticorrosion/under water |
Platform |
1 |
16.2 |
Effluent weir |
14000mm×400mm×2mm |
SS304 |
Set |
1 |
17 |
Dehydration machine room |
|
|
|
|
17.1 |
Screw pump |
G40-1, Q=3.3m3/ h, H=60m, N=1.5kW |
Compound |
Platform |
2 |
17.2 |
Filter press (complete set of equipments) |
Filter area: 200m2, hydraulic compression, mechanical pressure maintaining, automatic discharging |
Compound |
Set |
1 |
18 |
Air blast machine room |
|
|
|
|
18.1 |
Roots blower |
Q=11.42m3/ min, Δ Pa=68.6kPa, N=18.5kW |
Cast iron |
Platform |
2 |
19 |
Advanced treating part |
|
|
|
|
19.1 |
Raw water pump |
Q=50t/h, H=36m, N=11kW, 1 are standby with 1 |
Cast iron |
Platform |
2 |
19.2 |
Heat exchanger |
Pipe heat exchanger, coolant Q=50t/h, temperature rise 20 DEG C, join automatic warm control regulation valve, temperature transmitter |
904L |
Platform |
1 |
19.3 |
Flocculant chemicals dosing plant |
Batch meter: V=200L, containing low liquid-level switch, joins batch meter agitator, dosing pump (1 is standby with 1): GM0010, Q=10L/
H, H=120m, P=0.37kW |
Casing PE/ stirs SS316L/ pump
Head PVC |
Set |
1 |
19.4 |
Antibacterial chemicals dosing plant |
Batch meter: V=200L, containing low liquid-level switch, joins batch meter agitator, dosing pump (1 is standby with 1): GM0010, Q=10L/
H, H=120m, P=0.37kW |
Casing PE/ stirs SS316L/ pump
Head PVC |
Set |
1 |
19.5 |
Pipe-line mixer |
DN100 |
PE/CS |
Platform |
1 |
19.6 |
More medium filter |
DN2800,Q=42m3/ h, anthracite: particle diameter 0.8-1.6mm, thickness 400mm, V=4.0 m3Quartz sand: particle diameter 0.5-
1.2mm, thickness 800mm, V=8.0 m3 |
Carbon steel line with rubber, outside surface anticorrosion |
Set |
2 |
19.7 |
More medium filter backwash water pump |
Q=265m3/h,H=20m,N=30kW |
Cast iron |
Platform |
2 |
19.8 |
Roots blower |
Q=5.6m3/min,P=58KPa,N=15kW |
Cast iron |
Platform |
1 |
19.9 |
Self-cleaning filter |
Filtering accuracy: 100 μm, Q=47m3/h, |
Filter screen SS316L |
Platform |
1 |
19.10 |
Ultrafiltration apparatus |
Clean aquifer yield: Q=42t/h overlaps, the response rate: 90%, hyperfiltration membrane assembly: SN-CUF-0860,24, net flux
43.8L/㎡h |
|
Set |
1 |
19.11 |
Hyperfiltration reverse-rinsing water pump |
Q=70t/h, H=25m, N=11kW, 1 are standby with 1, distribution transforming frequency |
Flow passage components SS316L |
Platform |
2 |
19.12 |
Hyperfiltration reverse-rinsing filter |
Y-type filter, DN125, filtering accuracy 100 μm, |
Carbon steel line with rubber, outside surface anticorrosion |
Platform |
1 |
19.13 |
Hydrochloric acid chemicals dosing plant |
Batch meter: V=200L, containing low liquid-level switch, joins dosing pump (1 is standby with 1): P+056, Q=3.8L/h, H=76m, P=22W |
Casing PE/ pump head PVC |
Set |
1 |
19.14 |
Sodium carbonate chemicals dosing plant |
Batch meter: V=200L, containing low liquid-level switch, joins dosing pump (1 is standby with 1): P+096, Q=15.1L/h, H=100m, P=
22W |
Casing PE/ pump head PVC |
Set |
1 |
19.15 |
Non-oxidative antimicrobial chemicals dosing plant |
Batch meter: V=200L, containing low liquid-level switch, joins dosing pump (1 is standby with 1): P+056, Q=3.8L/h, H=76m, P=22W |
Casing PE/ pump head PVC |
Set |
1 |
19.16 |
Reverse osmosis booster pump |
Q=42t/h, H=32m, N=7.5kW, 1 are standby with 1 |
Flow passage components SS316L |
Platform |
2 |
19.17 |
Antisludging agent chemicals dosing plant |
Batch meter: V=200L, containing low liquid-level switch, joins dosing pump (1 is standby with 1): P+046, Q=1.9L/h, H=172m, P=22W |
Casing PE/ pump head PVC |
Set |
1 |
19.18 |
Reducing agent chemicals dosing plant |
Batch meter: V=200L, containing low liquid-level switch, joins dosing pump (1 is standby with 1): P+046, Q=1.9L/h, H=172m, P=22W |
Casing PE/ pump head PVC |
Set |
1 |
19.19 |
Pipe-line mixer |
DN100 |
PE/CS |
Platform |
1 |
19.20 |
Cartridge filter |
DN350, vertical, join big flow filter element: filtering accuracy 5 μm, 2/platform |
SS316L/PP |
Platform |
1 |
19.21 |
High-pressure pump |
Q=42t/h, H=170m, N=37kW, distribution transforming frequency |
Flow passage components SS316L |
Platform |
1 |
19.22 |
Reverse osmosis unit |
Q=27.3t/h overlaps, Re=65%, reverse-osmosis membrane element: BW30FR-400/34i, 42/set, average permeant flux:
17.5LMH |
|
Set |
1 |
19.23 |
Waste water pump |
Q=15t/h, H=32m, N=3kW, 1 are standby with 1 |
Cast iron |
Platform |
2 |
19.24 |
RO flush water pump |
Q=36t/h,H=32m,N=5.5kW |
SS304 |
Platform |
1 |
19.25 |
Chemically-cleaning device |
|
|
Set |
1 |
19.26 |
Technique air reservoir |
V=2m3, P=1.0MPa, supporting relief valve, blowoff valve |
16MnR |
Platform |
1 |
19.27 |
Instrument compressed air basin |
V=1m3, P=1.0MPa, supporting relief valve, blowoff valve, air relief valve |
16MnR |
Platform |
1 |
19.27 |
Other matching instruments, valve |
Supporting |
|
Set |
1 |
20 |
System mounting material |
Supporting |
|
Batch |
1 |
21 |
Electrical system |
Supporting |
|
Set |
1 |
22 |
Other system |
Supporting standby redundancy, specific purpose tool, illumination, HVAC, plumbing, communication etc. |
|
Set |
1 |