CN105883965A - Cross-linked polyvininylpolyrrolidone supporter adsorption and purification system - Google Patents
Cross-linked polyvininylpolyrrolidone supporter adsorption and purification system Download PDFInfo
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- CN105883965A CN105883965A CN201610314354.2A CN201610314354A CN105883965A CN 105883965 A CN105883965 A CN 105883965A CN 201610314354 A CN201610314354 A CN 201610314354A CN 105883965 A CN105883965 A CN 105883965A
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- net cage
- pvpp
- carrier
- thermal treatment
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
Abstract
The invention discloses a cross-linked polyvininylpolyrrolidone supporter adsorption and purification system. The cross-linked polyvininylpolyrrolidone supporter adsorption and purification system comprises a stainless steel tank body, a cross-linked polyvininylpolyrrolidone supporter net cage, an electric net cage slide rail, an electric heating coil, a water inlet valve, a water discharging valve, a supporter net cage heating region inlet, a supporter net cage heating region outlet and a condensation pipe. According to the system, the selective adsorbability of cross-linked polyvininylpolyrrolidone on ammonia nitrogen in water is creatively utilized, and carbonyl in a molecular structure can be compounded with amino acid to form a hydrogen bond complex. Artificial zeolite in the cross-linked polyvininylpolyrrolidone is mixed with domestic wastewater so that the ammonia nitrogen in the water is sufficiently adsorbed; the adsorbed ammonia nitrogen is released by the cross-linked polyvininylpolyrrolidone through a heating and desorption manner and is released in an ammonia gas manner.
Description
Technical field
The present invention relates to a kind of PVPP carrier adsorption cleaning system, belong to the field of waste water treatment in environmental protection.
Background technology
In recent years, along with improving constantly of China's cities and towns living standards of the people, the nitrogen content in urban life waste water steeply rises, and the arbitrarily discharge of increasing nitrogenous effluent causes harm greatly to environment.Nitrogen in waste water with organic nitrogen, ammoniacal nitrogen (NH4 +-N), nitrate nitrogen (NO3 --N) and nitrite nitrogen (NO2 --N) etc. various ways exist, and ammoniacal nitrogen is one of topmost existence form.Ammonia nitrogen in sanitary wastewater refers to the nitrogen existed with free ammonia and ion ammonium form, is mainly derived from swill and washing sewage.The pollution sources of ammonia nitrogen are many, and discharge capacity is big, and the change in concentration discharged is big.
From the perspective of environmental pollution, there is excess of ammonia nitrogen and dissolved oxygen concentration in water body can be caused to reduce, cause water body blackout smelly in water environment, deteriorating water quality, the existence to aquatic animals and plants impacts, and can cause body eutrophication.
At present, the technology that in sanitary wastewater, the utilization preferable, domestic of the process practicality of ammonia nitrogen is most is: biological denitrificaion method, ammonia aeration vaporizing extract process, break point chlorination, chemical precipitation method, ion-exchange, liquid-film method, soil irrigation method etc..
(1) biological denitrificaion method: under aerobic condition, effect by aerobic nitrification bacterium, it is nitrite or nitrate by the ammonium oxidation in waste water, the most under anoxic conditions, utilizes denitrifying bacterium (denitrifier) to be nitrogen by nitrite and nitrate reduction and escape from waste water.
(2) ammonia aeration vaporizing extract process: stripping, vaporizing extract process are mainly used in removing useless gas dissolved water and some volatile substances.Will be passed through in water by gas, make gas be fully contacted mutually with aqueous phase, make gas dissolved water and volatile solutes through gas-liquid interface, shift to gas phase, thus reach to remove the purpose of pollutant.
(3) break point chlorination: break point chlorination is to be passed through chlorine in waste water to reach certain point, and in water, free chlorine contents is relatively low when this, and the concentration of ammonia reduces to zero.When chlorine intake exceedes this, the free chlorine in water will increase, and therefore, this point is referred to as break, and the chlorination under this state is referred to as breakpoint chlorination.
(4) chemical precipitation method: chemical precipitation method is to add Mg in waste water+And PO4 3-, it is allowed to generate indissoluble double salt MgNH with ammonia nitrogen4PO4*6H2O(is called for short MAP) crystallization, then make MAP separate from waste water by gravitational settling.
(5) ion-exchange: the essence of ion exchange is the exchange reaction of the exchangeable ion on insoluble ionic compound (ion-exchanger) and other same sex ion in waste water, is a kind of special adsorption process, it is common that reversible chemical adsorbs.
(6) liquid-film method: it is that ammoniacal nitrogen is soluble in film phase that emulsion liquid membrane removes the mechanism of ammonia nitrogen, and it is from the outside of the high concentration of film, by the diffusive migration of film phase, arrives and occurs to solve dealkylation reaction, the NH of generation with the acid in interior boundary, with film internal phase inside film phase4 +Stable in film internal phase insoluble in oil phase, inside and outside film under the promotion of ammonia density difference, amino molecule is constantly by film adsorption, and diffusion migrates to desorb inside film phase, thus reaches to separate the purpose removing ammonia nitrogen.
(7) soil irrigation method: soil irrigation is ammonia nitrogen waste water using low concentration (< 50mg/L) to be used as the fertilizer of crops, both provided stable water source for irrigating region agricultural, and turn avoid body eutrophication, and improve water utilization rate.But the waste water for soil irrigation has to pass through pretreatment, remove the harmful substances such as germ, heavy metal, phenols, cyanide, oils.
There is the shortcomings such as cost height, technical sophistication, treatment effect instability due to above-mentioned traditional treatment method, therefore, it is necessary to break away from existing treatment technology thinking, hews out and process the new way of ammonia nitrogen in sanitary wastewater, and then develop NH3-N elimination method in the sanitary wastewater of a kind of new type.
Summary of the invention
nullFor solving the deficiencies in the prior art，The invention provides a kind of PVPP carrier adsorption cleaning system，It is characterized in that，Including stainless steel pond body、PVPP carrier net cage、Electronic net cage slide rail、Electrical heating coil、Inlet valve、Water discharging valve、Carrier net cage thermal treatment zone entrance、The carrier net cage thermal treatment zone exports、Condenser pipe etc.，Pond body is fixedly arranged in the middle of a circle electronic net cage slide rail，10 PVPP carrier net cages are installed on electronic net cage slide rail at equal intervals，Pond body is arranged over the carrier net cage thermal treatment zone，Upper and lower both sides, the thermal treatment zone are respectively arranged with electrical heating coil，PVPP carrier net cage is entered the thermal treatment zone by the entrance on the left of the thermal treatment zone，And the outlet through right side leaves the thermal treatment zone，Thermal treatment zone upper right quarter is provided with condenser pipe，Pond body lower left quarter is provided with inlet valve，Upper right quarter is provided with water discharging valve.
nullAfter pH value regulation processes, the sanitary wastewater of (after process, pH value is 6.5 ~ 8.0) is by portion in the inlet valve entrance pond body of PVPP carrier adsorption cleaning system lower left quarter，Rotating clockwise at a slow speed made under the driving of electronic net cage slide rail by 10 PVPP carrier net cages，Waste water is made to be fully contacted with the artificial zeolite containing PVPP in carrier net cage，PVPP can fully adsorb the ammoniacal nitrogen in waste water and portion of water，Adsorb the most saturated after PVPP carrier net cage prolong clockwise movement path and be raised to carrier net cage thermal treatment zone entrance，And enter inside the thermal treatment zone，Heating through electrical heating coil，Make PVPP generation thermal desorption，Ammoniacal nitrogen and the moisture of its absorption are discharged with the situation of ammonia-water vapor mixture body，Mixed gas is after the cooling of condenser pipe，The water recovery that boiling point is higher is liquid water droplets，Heated district outlet return is in the body of pond，And the relatively low ammonia of boiling point will not be caught a cold and is condensed into liquid，And be to continue with keeping gas form in gas vent enters into the pickling tower of next processing links，PVPP carrier net cage after thermal desorption processes is regenerated，And prolong portion in exit, the carrier net cage thermal treatment zone drops to pond body, clockwise movement path，Again with waste water play suction-operated，Waste water after native system purified treatment is discharged pond body by the water discharging valve of pond body upper right quarter，Enter next processing links.
Further, the pond body dischargeable capacity of PVPP carrier adsorption cleaning system is 350m3；PVPP carrier net cage volume is 5.5m3, aperture is 12mm；The operating voltage of electronic net cage slide rail is 380V, and rotating speed is 25min/ circle.
Further, PVPP carrier selects artificial zeolite as the support material of PVPP, and its PVPP mass content is 40.5%.
Further, the operating voltage of the electrical heating coil of PVPP carrier adsorption cleaning system is 380V, and heating-up temperature can reach 225 DEG C；Condenser pipe uses lithium bromide refrigerating agent, and refrigeration machine operating voltage is 380V, and cryogenic temperature is up to 15 DEG C.
It is an advantage of the current invention that:
(1) native system has broken away from existing sanitary wastewater ammonia nitrogen purified treatment principle, creative make use of PVPP (PVPP) to the Selective adsorption of ammoniacal nitrogen in water, carbonyl in its molecular structure can form hydrogen bond complex with amino chemical combination, artificial zeolite containing PVPP is mixed with sanitary wastewater, it is made fully to adsorb ammonia nitrogen therein, so that the sanitary wastewater containing ammonia nitrogen is purified, its ammonia nitrogen removal efficiency is up to 98.8%
(2) material that native system uses is artificial zeolite and PVPP (PVPP), and both is non-toxic, thus eliminates the risk introducing the pollutant new, harm is bigger；Meanwhile, both materials are simple and easy to get, and low price greatly reduces system operation cost.
(3) native system principle is simple, and design and construction cost is relatively low, and treatment effect is preferable, and operation expense is the lowest, is conducive to popularization and application on a large scale.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of PVPP carrier adsorption cleaning system.
51-stainless steel pond body, 52-PVPP carrier net cage, 53-electronic net cage slide rail, 54-electrical heating coil, 55-inlet valve, 56-water discharging valve, 57-carrier net cage thermal treatment zone entrance, the outlet of the 58-carrier net cage thermal treatment zone, 59-condenser pipe.
Detailed description of the invention
PVPP carrier adsorption cleaning system as shown in Figure 1, including stainless steel pond body 51, PVPP carrier net cage 52, electronic net cage slide rail 53, electrical heating coil 54, inlet valve 55, water discharging valve 56, carrier net cage thermal treatment zone entrance 57, carrier net cage thermal treatment zone outlet 58, condenser pipe 59.Pond body is fixedly arranged in the middle of a circle electronic net cage slide rail 53,10 PVPP carrier net cages 52 are installed on electronic net cage slide rail 53 at equal intervals, pond body is arranged over the carrier net cage thermal treatment zone, upper and lower both sides, the thermal treatment zone are respectively arranged with electrical heating coil 54, PVPP carrier net cage 52 is entered the thermal treatment zone by the entrance 57 on the left of the thermal treatment zone, and the outlet 58 through right side leaves the thermal treatment zone, thermal treatment zone upper right quarter is provided with condenser pipe 59, pond body lower left quarter is provided with inlet valve 55, and upper right quarter is provided with water discharging valve 56；nullAfter pH value regulation processes, the sanitary wastewater of (after process, pH value is 6.5 ~ 8.0) enters portion in the body of pond by the inlet valve 55 of PVPP carrier adsorption cleaning system 5 lower left quarter，Rotating clockwise at a slow speed made under the driving of electronic net cage slide rail 53 by 10 PVPP carrier net cages 52，Waste water is made to be fully contacted with the artificial zeolite containing PVPP in carrier net cage 52，PVPP can fully adsorb the ammoniacal nitrogen in waste water and portion of water，Adsorb the most saturated after PVPP carrier net cage 52 prolong clockwise movement path and be raised to carrier net cage thermal treatment zone entrance 57，And enter inside the thermal treatment zone，Heating through electrical heating coil 54，Make PVPP generation thermal desorption，Ammoniacal nitrogen and the moisture of its absorption are discharged with the situation of ammonia-water vapor mixture body，Mixed gas is after the cooling of condenser pipe 59，The water recovery that boiling point is higher is liquid water droplets，Heated district outlet 58 is back in the body of pond，And the relatively low ammonia of boiling point will not be caught a cold and is condensed into liquid，And be to continue with keeping gas form in gas vent enters into the pickling tower 10 of next processing links，PVPP carrier net cage 52 after thermal desorption processes is regenerated，And prolong clockwise movement path and export through the carrier net cage thermal treatment zone and at 58, drop to portion in the body of pond，Again with waste water play suction-operated，Waste water after native system purified treatment is discharged pond body by the water discharging valve 56 of pond body upper right quarter，Enter next processing links.
Sanitary wastewater after being processed by native system, its ammonia nitrogen removal efficiency is up to 98.8%.
Claims (4)
1. a PVPP carrier adsorption cleaning system, it is characterized in that, including stainless steel pond body, PVPP carrier net cage, electronic net cage slide rail, electrical heating coil, inlet valve, water discharging valve, carrier net cage thermal treatment zone entrance, the carrier net cage thermal treatment zone exports, condenser pipe etc., pond body is fixedly arranged in the middle of a circle electronic net cage slide rail, 10 PVPP carrier net cages are installed on electronic net cage slide rail at equal intervals, pond body is arranged over the carrier net cage thermal treatment zone, upper and lower both sides, the thermal treatment zone are respectively arranged with electrical heating coil, PVPP carrier net cage is entered the thermal treatment zone by the entrance on the left of the thermal treatment zone, and the outlet through right side leaves the thermal treatment zone, thermal treatment zone upper right quarter is provided with condenser pipe, pond body lower left quarter is provided with inlet valve, upper right quarter is provided with water discharging valve.
PVPP carrier adsorption cleaning system the most according to claim 1, it is characterised in that pond body dischargeable capacity is 350m3, its PVPP carrier net cage volume is 5.5m3, aperture is 12mm, and the operating voltage of its electronic net cage slide rail is 380V, and rotating speed is 25min/ circle.
PVPP carrier adsorption cleaning system the most according to claim 1, it is characterized in that, PVPP carrier selects artificial zeolite as the support material of PVPP, and its PVPP mass content is 40.5%.
PVPP carrier adsorption cleaning system the most according to claim 1, it is characterised in that the operating voltage of electrical heating coil is 380V, heating-up temperature reaches 225 DEG C, condenser pipe uses lithium bromide refrigerating agent, and refrigeration machine operating voltage is 380V, and cryogenic temperature is up to 15 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314354.2A CN105883965A (en) | 2016-05-13 | 2016-05-13 | Cross-linked polyvininylpolyrrolidone supporter adsorption and purification system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610314354.2A CN105883965A (en) | 2016-05-13 | 2016-05-13 | Cross-linked polyvininylpolyrrolidone supporter adsorption and purification system |
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| CN105883965A true CN105883965A (en) | 2016-08-24 |
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| CN201610314354.2A Pending CN105883965A (en) | 2016-05-13 | 2016-05-13 | Cross-linked polyvininylpolyrrolidone supporter adsorption and purification system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10277543A (en) * | 1997-04-09 | 1998-10-20 | Ngk Insulators Ltd | Method for nitrification and denitrification of nitrogen-containing waste water |
| CN104084234A (en) * | 2014-07-16 | 2014-10-08 | 沈阳工业大学 | Crosslinked polyethylene pyrrolidone based catalyst and preparation method thereof |
| CN104874364A (en) * | 2015-05-12 | 2015-09-02 | 安徽鑫昆净化设备有限公司 | Active modified zeolite composite adsorption material and preparation method thereof |
| CN105032203A (en) * | 2015-07-28 | 2015-11-11 | 苏州科技学院 | Preparation method of membrane adsorbent for removing ammonia nitrogen in wastewater |
| CN105693033A (en) * | 2016-04-06 | 2016-06-22 | 金华知产婺源信息技术有限公司 | Treatment system for removing ammonia nitrogen in domestic wastewater |
| CN105819538A (en) * | 2016-04-06 | 2016-08-03 | 杭州启澄科技有限公司 | Method for using crosslinked polyvinylpyrrolidone supporter to absorb and purify ammonia-nitrogen wastewater |
| CN105819622A (en) * | 2016-04-06 | 2016-08-03 | 金华知产婺源信息技术有限公司 | Treatment method for removing ammonia nitrogen in domestic wastewater |
-
2016
- 2016-05-13 CN CN201610314354.2A patent/CN105883965A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10277543A (en) * | 1997-04-09 | 1998-10-20 | Ngk Insulators Ltd | Method for nitrification and denitrification of nitrogen-containing waste water |
| CN104084234A (en) * | 2014-07-16 | 2014-10-08 | 沈阳工业大学 | Crosslinked polyethylene pyrrolidone based catalyst and preparation method thereof |
| CN104874364A (en) * | 2015-05-12 | 2015-09-02 | 安徽鑫昆净化设备有限公司 | Active modified zeolite composite adsorption material and preparation method thereof |
| CN105032203A (en) * | 2015-07-28 | 2015-11-11 | 苏州科技学院 | Preparation method of membrane adsorbent for removing ammonia nitrogen in wastewater |
| CN105693033A (en) * | 2016-04-06 | 2016-06-22 | 金华知产婺源信息技术有限公司 | Treatment system for removing ammonia nitrogen in domestic wastewater |
| CN105819538A (en) * | 2016-04-06 | 2016-08-03 | 杭州启澄科技有限公司 | Method for using crosslinked polyvinylpyrrolidone supporter to absorb and purify ammonia-nitrogen wastewater |
| CN105819622A (en) * | 2016-04-06 | 2016-08-03 | 金华知产婺源信息技术有限公司 | Treatment method for removing ammonia nitrogen in domestic wastewater |
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Application publication date: 20160824 |
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