Full embrane method haline water recycling and processing equipmentTechnical field
The utility model relates to water-treatment technology field, specifically a kind of full embrane method haline water recycling and processing equipment.
Background technique
Haline water is surface water, underground water or other all kinds of water, by film concentration, ion exchange regenerant, cleaning waste water orEvaporation process is formed by the water of high saliferous, high rigidity.Haline water is mainly derived from circulating sewage, reverse osmosis concentrated water, ionExchange the condensed water of recycled water and other desalters, not only saliferous is high, hardness is high for such waste water, also containing partial organic substances,Algae and microorganism, also containing part fungicide, corrosion inhibiting and descaling agent and the oil pollution of leakage in circulating sewage.
As national environmental protection policy requirements are increasingly stringenter, the final processing mode of such waste water not only wants reuse, andIt realizes zero-emission, realizes that zero-emission will high power concentration.Existing high power condensing mode is that a 3-4 times of left side first is concentrated with embrane methodThe right side removes hardness subsequently into ion exchange, then is concentrated with embrane method.The hardness in water can only be removed because of ion exchange, and cannotThe impurity such as COD, basicity, the silica in water are removed, so that subsequent enrichment facility is difficult to stable operation, and cycles of concentration is notIt can be made high.In addition, ion exchange operation will fail after a certain period of time, need to consume a large amount of acid or salt when regeneration, thisA little acid or salt are returned in system, the salt content of system are increased, to influence the cycles of concentration of whole system.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of existing technologies, and provides a kind of full embrane method haline water timeWith processing unit, the utility model can improve the cycles of concentration of whole system to greatest extent, keep remaining wastewater flow rate minimumChange.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution：
A kind of full embrane method haline water recycling and processing equipment, including the first reaction tank, the first reaction tank connection first plus alkali dressIt sets, the first reaction tank output end connects the first sedimentation basin, the first water tank, the first descaler, the first booster pump set gradually, theThe ceramic film device of one booster pump connection first, the first ceramic film device connect the first ceramic membrane water producing tank, and the first ceramic membrane produces waterCase connects the second booster pump, and the second booster pump junctional membrane desalter is equipped with first between the second booster pump and film desalterMeans for feeding acid, the production water reuse of film desalter, film desalter connection concentrated water case, concentrated water case the second reaction tank of connection, secondReaction tank connects the second adder-subtractor, and the second reaction tank output end connects the second sedimentation basin, the second water tank, second set graduallyDescaler, third booster pump, the ceramic film device of third booster pump connection second, the second ceramic film device connect the second ceramic membrane and produceWater tank, the second ceramic membrane water producing tank connect the 4th booster pump, and the 4th booster pump connects film condensing device, and the 4th booster pump and film are denseThe second means for feeding acid is equipped between compression apparatus, film condensing device produces water reuse.
In first adder-subtractor and the second adder-subtractor plus alkali refers to that sodium hydroxide, sodium hydroxide and carbon is addedOne of combination, calcium hydroxide and combination of sodium carbonate of sour sodium.
Acid adding in first means for feeding acid and the second means for feeding acid refers to that one of hydrochloric acid or sulfuric acid is added.
Described first ceramic film device and the second ceramic film device select tubular type, multichannel, doughnut, flat or circleOne of disc type.
The material that described first ceramic film device and the second ceramic film device are selected is aluminium oxide, zirconium oxide, titanium oxide, carbonOne of SiClx, kaolin or cordierite.
One of electrodialysis, reverse osmosis, nanofiltration or reverse osmosis combination with nanofiltration that the film desalter refers to, filmThe rate of recovery of desalter is between 50%-95%, preferably 80-90%；Salt rejection rate is between 50%-98%, preferably 70-90%
One of reverse osmosis, electrodialysis, electrodialysis and reverse osmosis combination that the film condensing device refers to, film concentrationThe rate of recovery of device is between 50%-90%, preferably 75-85%
The filtering accuracy of described first ceramic film device and the second ceramic film device is between 20 nanometers -20 microns.
First descaler, the second descaler are selected in electronic scale remover, ultrasound wave descaling instrument or magnetic descalerIt is a kind of.
The utility model beneficial effect achieved is：
By the utility model treated haline water, total cycles of concentration of haline water by original 20-50 times improve to40-100 times, water fully recovering is produced, operating cost saves 30% or more, and investment saves 30% or more.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with thisNovel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of the utility model embodiment one；
Fig. 2 is the structural schematic diagram of the utility model embodiment two.
In figure：In figure, the 1, first reaction tank, the 2, first adder-subtractor, the 3, first sedimentation basin, the 4, first water tank, 5, firstDescaler, the 6, first booster pump, 71, first circulation pump, the 72, first membrane cisterna, 81, tubular ceramic film device, 82, ceramic membraneDevice, the 9, first ceramic membrane water producing tank, the 10, second booster pump, the 11, first means for feeding acid, 12, Reverse Osmosis Desalination Process Equipment, 13, denseWater tank, the 14, second reaction tank, the 15, second adder-subtractor, the 16, second sedimentation basin, the 17, second water tank, the 18, second descaler,19, third booster pump, 201, second circulation pump, the 202, second membrane cisterna, 211, tubular ceramic film device, 212, ceramic membrane dressIt sets, the 22, second ceramic membrane water producing tank, the 23, the 4th booster pump, the 24, second means for feeding acid, 25, RO device, 26, ED enrichment facility,27, the first suction pump, the 28, second suction pump.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellentIt selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment one
As shown in Figure 1, a kind of full embrane method haline water recycling and processing equipment, including the first reaction tank 1, the first reaction tank 1 connectThe first adder-subtractor 2 is connect, 1 output end of the first reaction tank connects the first sedimentation basin 3, the first water tank 4, the first scale removal set graduallyInstrument 5, the first booster pump 6, first circulation pump 71,71 connection tubular ceramic membrane device 81 of first circulation pump, tubular ceramic film device81 the first ceramic membrane water producing tanks 9 of connection, the first ceramic membrane water producing tank 9 connect the second booster pump 10, and the second booster pump 10 connects insteadOsmosis desalination unit 12 is equipped with the first means for feeding acid 11 between second booster pump 10 and Reverse Osmosis Desalination Process Equipment 12.It is reverse osmosis de-The production water reuse of salt device 12, Reverse Osmosis Desalination Process Equipment 12 connect concentrated water case 13.The second reaction tank 14 of connection of concentrated water case 13, secondReaction tank 14 connects the second adder-subtractor 15, and 14 output end of the second reaction tank connects the second sedimentation basin 16, second set graduallyWater tank 17, the second descaler 18, third booster pump 19, second circulation pump 201,201 connection tubular ceramic membrane dress of second circulation pump211 are set, tubular ceramic film device 211 connects the second ceramic membrane water producing tank 22, the 4th pressurization of the second ceramic membrane water producing tank 22 connectionPump 23, the 4th booster pump 23 connect RO device 25, i.e., reverse osmosis concentrated compression apparatus is equipped between the 4th booster pump 23 and RO device 25Second means for feeding acid 24, RO device 25 produce water reuse, and RO device 25 connects ED device 26, i.e. electrodialysis plant.
First descaler 5, the second descaler 18 are selected in electronic scale remover, ultrasound wave descaling instrument or magnetic descalerOne kind.
The course of work of the utility model is as follows：Salt content is that 2500ppm circulating sewage is sent into first instead by the first stepIt answers in pond 1, sodium hydroxide and sodium carbonate is added with the first adder-subtractor 2, is stirred to react 60 minutes, forms calcium carbonate and hydroxideMagnesium crystal, the mixed liquor flow automatically in the first sedimentation basin 3, and the water after precipitating flows automatically in the first water tank 4, temporarily through the first water tank 4From flowing in the first descaler 5 after depositing, after the processing of the first descaler 5 into the first booster pump 6, improved through the first booster pump 6After pressure into first circulation pump 71, tubular ceramic film device 81 is arrived after first circulation pump 71 increases circular flow, by pipeThe filtered production water of formula ceramics film device 81 produces water and pressurizes through the second booster pump 10, pass through first to the first ceramic membrane water producing tank 911 acid adding of means for feeding acid enters the progress desalting processing of Reverse Osmosis Desalination Process Equipment 12, the production water of Reverse Osmosis Desalination Process Equipment 12 after adjusting PHReuse, concentrated water salt content 25000ppm enter concentrated water case 13.Second step makes a gift to someone the concentrated water in concentrated water case 13 second reaction tank 14In, sodium hydroxide and sodium carbonate is added with the second adder-subtractor 15, is stirred to react 60 minutes, forms calcium carbonate and magnesium hydroxide is brilliantBody, the mixed liquor flow automatically in the second sedimentation basin 16, and the water after precipitating flows automatically in the second water tank 17, temporary through the second water tank 17Afterwards from flowing in the second descaler 18, after the processing of the second descaler 18 into third booster pump 19, mentioned through third booster pump 19After high pressure into second circulation pump 201, tubular ceramic film device 211, warp are arrived after second circulation pump 201 increases circular flowThe filtered production water of tubular ceramic film device 211 produces water and pressurizes through the 4th booster pump 23, pass through to the second ceramic membrane water producing tank 22Second means for feeding acid, 24 acid adding enters RO device 25 after adjusting PH, and twice of laggard ED enrichment facility 26, warp is concentrated through RO device 25ED enrichment facility 26 is concentrated 4 times to salt content 200000ppm, and the production water of ED enrichment facility 26 returns to the second ceramic membrane water producing tankIn 22, the production water reuse of RO device 25, the concentrated water of ED enrichment facility 26 enters flue vaporization.After the processing of the above two-step enrichment,Total cycles of concentration of circulating sewage is 80 times.
Embodiment two
As shown in Fig. 2, a kind of full embrane method haline water recycling and processing equipment, including the first reaction tank 1, the first reaction tank 1 connectThe first adder-subtractor 2 is connect, 1 output end of the first reaction tank connects the first sedimentation basin 3, the first water tank 4, the first scale removal set graduallyInstrument 5, the first booster pump 6, the first booster pump 6 connect the first membrane cisterna 72, are equipped with flat ceramic film device 82 in the first membrane cisterna 72, put downPlate ceramics film device 82 connects the first ceramic membrane water producing tank 9, the first ceramic membrane water producing tank 9 connection second by the first suction pump 27Booster pump 10, the second booster pump 10 connects Reverse Osmosis Desalination Process Equipment 12, between the second booster pump 10 and Reverse Osmosis Desalination Process Equipment 12Equipped with the first means for feeding acid 11.The production water reuse of Reverse Osmosis Desalination Process Equipment 12, Reverse Osmosis Desalination Process Equipment 12 connect concentrated water case 13.It is denseWater tank 13 connects the second reaction tank 14, and the second reaction tank 14 connects the second adder-subtractor 15, the connection of 14 output end of the second reaction tankThe second sedimentation basin 16, the second water tank 17, the second descaler 18, third booster pump 19 set gradually, third booster pump 19 connectSecond membrane cisterna 202, the second membrane cisterna 202 is interior equipped with flat ceramic film device 212, and flat ceramic film device 212 passes through the second suction28 the second ceramic membrane water producing tank 22 of connection of pump, the second ceramic membrane water producing tank 22 connect the 4th booster pump 23, and the 4th booster pump 23 connectsRO device 25 is connect, i.e., reverse osmosis concentrated compression apparatus is equipped with the second means for feeding acid 24, RO dress between the 4th booster pump 23 and RO device 2525 production water reuses are set, RO device 25 connects ED device 26, i.e. electrodialysis plant.
The course of work of the utility model is as follows：Salt content is that 2500ppm circulating sewage is sent into first instead by the first stepIt answers in pond 1, sodium hydroxide and sodium carbonate is added with the first adder-subtractor 2, is stirred to react 60 minutes, forms calcium carbonate and hydroxideMagnesium crystal, the mixed liquor flow automatically in the first sedimentation basin 3, and the water after precipitating flows automatically in the first water tank 4, temporarily through the first water tank 4From flowing in the first descaler 5 after depositing, after the processing of the first descaler 5 into the first booster pump 6, conveyed through the first booster pump 6Into the first membrane cisterna 72, the is transported to after the first suction pump 27 suction by the filtered product water of flat ceramic film device 82It in one ceramic membrane water producing tank 9, produces water and pressurizes through the second booster pump 10, enter instead after adjusting PH by 11 acid adding of the first means for feeding acidOsmosis desalination unit 12 carries out desalting processing, the production water reuse of Reverse Osmosis Desalination Process Equipment 12, and concentrated water salt content 25000ppm entersConcentrated water case 13.Second step makes a gift to someone the concentrated water in concentrated water case 13 in second reaction tank 14, and hydrogen-oxygen is added with the second adder-subtractor 15Change sodium and sodium carbonate, be stirred to react 60 minutes, forms calcium carbonate and magnesium hydroxide crystal, the mixed liquor flow automatically to the second sedimentation basinIn 16, the water after precipitating is flowed automatically in the second water tank 17, from flowing in the second descaler 18 after the second water tank 17 is temporary, through theAfter the processing of two descalers 18 into third booster pump 19, it is transported in the second membrane cisterna 202 through third booster pump 19, makes pottery by plateThe filtered product water of porcelain film device 212 is transported in the second ceramic membrane water producing tank 22 after the second suction pump 28 suction, produces waterIt pressurizes through the 4th booster pump 23, enters RO device 25 after adjusting PH by 24 acid adding of the second means for feeding acid, be concentrated through RO device 25Twice of laggard ED enrichment facility 26 is concentrated 4 times to salt content 200000ppm, the production of ED enrichment facility 26 through ED enrichment facility 26Water returns in the second ceramic membrane water producing tank 22, and the production water reuse of RO device 25, the concentrated water of ED enrichment facility 26 enters flue vapourChange.After the processing of the above two-step enrichment, total cycles of concentration of circulating sewage is 80 times.