CN105198030A - Method for removing chloride ions in water through garlic waste - Google Patents
Method for removing chloride ions in water through garlic waste Download PDFInfo
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- CN105198030A CN105198030A CN201410264357.0A CN201410264357A CN105198030A CN 105198030 A CN105198030 A CN 105198030A CN 201410264357 A CN201410264357 A CN 201410264357A CN 105198030 A CN105198030 A CN 105198030A
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Abstract
The invention provides a method for removing chloride ions in water through garlic waste, and belongs to the technical field of adsorption removing of chloride ions in water. The method includes the steps that garlic waste adsorbent materials and an aqueous solution with silver ions in a certain concentration carry out a contact adsorption reaction, and silver-ion-carrying garlic waste biomass adsorption materials are obtained; after the prepared silver-ion-carrying garlic waste biomass adsorption materials and an aqueous solution with the chloride ions carry out a contact reaction for a period of time, the aim of removing the chloride ions in the water can be achieved. After follow-up treatment is carried out on the reacted silver-ion-carrying garlic waste biomass adsorption materials, silver can be recycled in a powder mode. The method is simple and practicable, the adsorption effect is remarkable, adsorption operation is quite easy and convenient, no new impurity is introduced into a to-be-treated water source, chloride adsorption removing time is short, and large-scale implementing is convenient.
Description
Technical field
The present invention relates to the adsorbing and removing technical field of chlorion in water, refer to a kind of method utilizing garlic waste to remove chlorion in water especially.
Background technology
Chlorion is a kind of negatively charged ion common in water, and its concentration comparatively Gao Shihui causes the problems such as tap water mouthfeel is poor, the corrosion of metal water pipe, therefore in industry member and life, has a lot of occasion to have the demand removing chlorion in water.
The common method of chlorion in water that removes has: the 1) precipitator method: adopt Silver Nitrate to do precipitation agent, by the chlorion in water with the mode filtering and removing of precipitation.The method removing chloride ion effective, shortcoming is also obvious, such as Silver Nitrate reagent is more expensive, precipitation particles often very tiny meeting causes solid-liquid separation difficulty, and in order to ensure that chlorion removal effect often has unnecessary silver ions and remains in water and cause secondary pollution, Silver Nitrate also can bring nitrate radical into as dechlorinating agent in addition, feedwater causes secondary pollution and makes the content of nitrogen in water increase, although therefore the method principle is simple, use range is still limited.2) ion exchange method: namely adopt resin anion(R.A) to be removed by chlorion, this method is simple, convenient, but complicated pre-treatment in early stage is needed to the swap operation of chlorion, and require higher to the cleanliness factor etc. of water, otherwise the micropore of resin can be blocked and cause dechlorination to lose efficacy, therefore also having some limitations.3) membrane separating method: adopt the method for electrodialysis or reverse osmosis to be removed by chlorion, the method removing chloride ion is effective, but electrodialysis or reverse osmosis unit is more expensive, maintenance cost is also higher, limit it and widely use.4) electro-adsorption method a: external electric field is applied to the aqueous solution, chlorion in forced water moves towards the electrode with opposite charges, concentrate and removes, there is the advantages such as dechlorination effect is good, running cost is low, but its power consumption run comparatively large, need special device.Therefore, exploiting economy, remove chlorion in water efficiently, easily modern technique very necessary.
The invention discloses one utilizes garlic waste for raw material, prepares sorbing material, is specifically designed to the deep removal of chlorion in water, have the dechlorination effect of highly significant.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method utilizing garlic waste to remove chlorion in water.
The concrete steps of the method are:
First, get the Silver Nitrate solion of 0.1mol/L, the pH of metal ion solution is regulated to be after 4 ~ 5 with the nitric acid of 0.1mol/L and sodium hydroxide solution, nitrogen gas stirring or logical nitrogen adopt mechanical stirring 30min simultaneously, the consumption of 20 ~ 50g is added with often liter of Silver Nitrate solion, add garlic waste sorbing material, continue stirring reaction 10 ~ 24h under lucifuge condition after, sorbing material is filtered, after distilled water wash 3 times, the baking oven putting into 60 DEG C dries 6h, namely the dry absorbent powder of gained is the garlic waste biomass absorbent material of load silver ion,
Then, the garlic waste biomass absorbent material of load silver ion is joined in waste water with the consumption that often liter of chloride ion-containing waste water adds 0.1 ~ 150g, after mechanical stirring or pneumatic blending 10 ~ 100min, filter, reach the object removing chlorion in water;
Finally, after the ammoniacal liquor immersion of the garlic waste biomass absorbent material of the load silver ion after filtration, stirring 30 ~ 50min, filter, in the filtrate obtained, add hydrazine hydrate, POTASSIUM BOROHYDRIDE, formaldehyde, xitix, inferior sodium phosphate make reductive agent, after being heated to 40 ~ 60 DEG C, insulation reaction 60min, filters again, obtains silver powder; After the silver powder nitric acid dissolve obtained, continue on for the garlic waste biomass absorbent material preparing load silver ion.
Wherein, the preparation method of the garlic waste sorbing material that aforesaid method is used is prepared according to method disclosed in patent No. ZL:201210019530.1, be about to after washing containing-COOH,-SH,-NH2, the biomass of-(phenol) OH isoreactivity functional group, as garlic residue, mangosteen slag, marine alga, vinasse, tangerine slag, Pericarpium Mali pumilae, pomelo peel etc. and alkali, water carries out being uniformly mixed reaction according to the mass ratio of 1:0.05-0.2:0.5-2, stir 12 ~ 24 hours, filter, obtain solid product, wherein, described alkali is lithium, sodium, potassium, calcium, the oxide compound of magnesium, oxyhydroxide, carbonate, supercarbonate or volatile salt, bicarbonate of ammonia, urea, one or two or more kinds mixing in ammoniacal liquor, washed with water by above solid product until neutral, feeding vacuum drying oven, be 60 ~ 120 DEG C of dryings in temperature, drying object smashed, sieve, the following powder collection of 40 order obtains biomass absorbent agent material.
The beneficial effect of technique scheme of the present invention is as follows:
In such scheme, the preparation method of sorbing material is simple, easy, adsorption effect is remarkable, adsorption operations is very easy, avoid and directly adopt Silver Nitrate as the various shortcoming of dechlorinating agent, introduce new impurity can not to pending water source, and the absorption dechlorination time is very short, only needs several minutes; Silver-colored chlorine compound after absorption, can adopt the method for powder reducing process to be reclaimed, and is cycled to used in the preparation of the biomass absorbent material of load silver ion, thus greatly reduces the cost of silver as sorbing material.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with specific embodiment.
The present invention is directed to the existing method use range removing chlorion in water limited, high in cost of production problem, provides a kind of method utilizing garlic waste to remove chlorion in water.
Embodiment 1
The Silver Nitrate solion 2 liters of preparation 0.1mol/L concentration, the pH of metal ion solution is regulated to be after 4 with the nitric acid of 0.1mol/L and sodium hydroxide solution, after nitrogen gas stirring or logical nitrogen adopt mechanical stirring 30min simultaneously, drop into the garlic waste sorbent material 100g of 200 order granularities, continue reaction 24h, operate in the environment of lucifuge in whole absorption reaction process, by absorbent filtering, after distilled water wash 3 times, the baking oven putting into 60 DEG C dries 6 hours, the dechlorinating agent material of the dry absorbent powder of the gained silver ions that has been namely load.
Get 500 ml water solution, wherein chloride ion-containing 1000mg/L, add negative silver-colored garlic waste absorption powder material 3 grams, stirring reaction is after 30 minutes, and filter, recording chloride ion-containing concentration in the solution after absorption is 60mg/L, the Be very effective of this dechlorination sorbent material visible, dechlorination rate reaches more than 94%.
The sorbent material arrived by collecting by filtration, after the ammoniacal liquor 50 milliliters immersion of 1mol/L, stirring 30min, filter, will add 5 milliliters of hydrazine hydrates in filtrate, insulation reaction 60min after being heated to 50 DEG C, filtration can obtain silver powder.Again with 50 milliliters, the nitric acid mixing of 0.1mol/L concentration, for continuing the garlic waste biomass absorbent material preparing load silver ion.
Embodiment 2
The Silver Nitrate solion 2 liters of preparation 0.1mol/L concentration, the pH of metal ion solution is regulated to be after 5 with the nitric acid of 0.1mol/L and sodium hydroxide solution, after nitrogen gas stirring or logical nitrogen adopt mechanical stirring 30min simultaneously, drop into the garlic waste sorbent material 50g of 40 order granularities, continue reaction 24h, operate in the environment of lucifuge in whole absorption reaction process, by absorbent filtering, after distilled water wash 3 times, the baking oven hot blast putting into 60 DEG C dries 6 hours, the dechlorinating agent material of the dry absorbent powder of the gained silver ions that has been namely load.
Get 500 ml water solution, wherein chloride ion-containing 1000mg/L, add negative silver-colored garlic waste absorption powder material 3 grams, stirring reaction is after 30 minutes, and filter, recording chloride ion-containing concentration in the solution after absorption is 28mg/L, the Be very effective of this dechlorination sorbent material visible, dechlorination rate reaches more than 97%.
The sorbent material arrived by collecting by filtration, after the ammoniacal liquor 50 milliliters immersion of 1mol/L, stirring 30min, filter, will add 5 milliliters of hydrazine hydrates in filtrate, insulation reaction 60min after being heated to 50 DEG C, filtration can obtain silver powder.Again with 50 milliliters, the nitric acid mixing of 0.1mol/L concentration, for continuing the garlic waste biomass absorbent material preparing load silver ion.
Embodiment 3
The Silver Nitrate solion 2 liters of preparation 0.1mol/L concentration, the pH of metal ion solution is regulated to be after 4.6 with the nitric acid of 0.1mol/L and sodium hydroxide solution, after nitrogen gas stirring or logical nitrogen adopt mechanical stirring 30min simultaneously, drop into the garlic waste sorbent material 60g of 300 order granularities, after stirring reaction 10h, operate in the environment of lucifuge in whole absorption reaction process, by absorbent filtering, after distilled water wash 3 times, the baking oven putting into 60 DEG C dries 6h, the dechlorinating agent material of the dry absorbent powder of the gained silver ions that has been namely load.
Get 500 ml water solution, wherein chloride ion-containing 1000mg/L, add negative silver-colored garlic waste absorption powder material 3 grams, stirring reaction is after 30 minutes, and filter, recording chloride ion-containing concentration in the solution after absorption is 15mg/L, the Be very effective of this dechlorination sorbent material visible, dechlorination rate reaches more than 98%.
The sorbent material arrived by collecting by filtration, after the ammoniacal liquor 50 milliliters immersion of 1mol/L, stirring 30min, filter, will add 3 grams of inferior sodium phosphate in filtrate, insulation reaction 60min after being heated to 50 DEG C, filtration can obtain silver powder.Again with 50 milliliters, the nitric acid mixing of 0.1mol/L concentration, for continuing the garlic waste biomass absorbent material preparing load silver ion.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. utilize garlic waste to remove a method for chlorion in water, it is characterized in that:
First, get the Silver Nitrate solion of 0.1mol/L, the pH of metal ion solution is regulated to be after 4 ~ 5 with the nitric acid of 0.1mol/L and sodium hydroxide solution, nitrogen gas stirring or logical nitrogen adopt mechanical stirring 30min simultaneously, the consumption of 20 ~ 50g is added with often liter of Silver Nitrate solion, add garlic waste sorbing material, after continuing stirring reaction 10 ~ 24h, sorbing material is filtered, after distilled water wash 3 times, the baking oven putting into 60 DEG C dries 6h, and namely the dry absorbent powder of gained is the garlic waste biomass absorbent material of load silver ion;
Then, the garlic waste biomass absorbent material of load silver ion is joined in waste water with the consumption that often liter of chloride ion-containing waste water adds 0.1 ~ 150g, after mechanical stirring or pneumatic blending 10 ~ 100min, filter, reach the object removing chlorion in water;
Finally, after the ammoniacal liquor immersion of the garlic waste biomass absorbent material of the load silver ion after filtration, stirring 30 ~ 50min, filter, in the filtrate obtained, add hydrazine hydrate, POTASSIUM BOROHYDRIDE, formaldehyde, xitix, inferior sodium phosphate make reductive agent, after being heated to 40 ~ 60 DEG C, insulation reaction 60min, filters again, obtains silver powder; After the silver powder nitric acid dissolve obtained, continue on for the garlic waste biomass absorbent material preparing load silver ion.
2. a kind of method utilizing garlic waste to remove chlorion in water according to claim 1, is characterized in that: the garlic waste biomass absorbent material preparing load silver ion carries out under the condition of lucifuge.
3. a kind of method utilizing garlic waste to remove chlorion in water according to claim 1, it is characterized in that: the preparation method of described garlic waste sorbing material is: the garlic residue after washing and alkali, water are carried out being uniformly mixed reaction according to the mass ratio of 1:0.05-0.2:0.5-2, stir 12 ~ 24 hours, filter, obtain solid product, wherein, described alkali is one or two or more kinds mixing in lithium, sodium, potassium, calcium, the oxide compound of magnesium, oxyhydroxide, carbonate, supercarbonate or volatile salt, bicarbonate of ammonia, urea, ammoniacal liquor; Washed with water by above solid product until neutral, feeding vacuum drying oven, be 60 ~ 120 DEG C of dryings in temperature, drying object smashed, sieve, the following powder collection of 40 order obtains garlic waste sorbing material.
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| CN201410264357.0A CN105198030B (en) | 2014-06-13 | 2014-06-13 | A kind of method of chlorion in utilization garlic waste removing water |
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| CN201410264357.0A CN105198030B (en) | 2014-06-13 | 2014-06-13 | A kind of method of chlorion in utilization garlic waste removing water |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771922A (en) * | 2016-05-25 | 2016-07-20 | 北京科技大学 | Preparation and application methods of copper ion adsorbent |
| CN108970586A (en) * | 2017-05-31 | 2018-12-11 | 南京博络金环保科技有限公司 | A method of utilizing low-concentration ammonia-nitrogen in biological adsorption removing water body |
| CN109289783A (en) * | 2018-10-22 | 2019-02-01 | 北京科技大学 | Utilize garlic stalk waste preparation arsenic removal compounding adsorbent material and application method |
| CN109289786A (en) * | 2018-10-22 | 2019-02-01 | 北京科技大学 | The method of preparation and use of the adsorbent material of anions and canons in water is removed simultaneously |
| CN109331787A (en) * | 2018-10-22 | 2019-02-15 | 北京科技大学 | A kind of production method that can be sterilized simultaneously with the profile of removing heavy metals |
| CN109331786A (en) * | 2018-10-22 | 2019-02-15 | 北京科技大学 | A method of sterilization water-purifying material is made using garlic stalk waste |
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| JP2009098083A (en) * | 2007-10-19 | 2009-05-07 | National Institute For Materials Science | Iodine storage body |
| CN102557181A (en) * | 2012-01-20 | 2012-07-11 | 北京科技大学 | Method for adsorption and removal of heavy metals and dye of waste water by garlic waste |
| CN103371429A (en) * | 2012-04-22 | 2013-10-30 | 朱大恒 | Tobacco dechlorinating method, application of tobacco dechlorinating method and tobacco dechlorinating device |
| CN103831086A (en) * | 2012-11-19 | 2014-06-04 | 株式会社东芝 | Halogen adsorbent, tank for water treatment, and water treatment system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009098083A (en) * | 2007-10-19 | 2009-05-07 | National Institute For Materials Science | Iodine storage body |
| CN102557181A (en) * | 2012-01-20 | 2012-07-11 | 北京科技大学 | Method for adsorption and removal of heavy metals and dye of waste water by garlic waste |
| CN103371429A (en) * | 2012-04-22 | 2013-10-30 | 朱大恒 | Tobacco dechlorinating method, application of tobacco dechlorinating method and tobacco dechlorinating device |
| CN103831086A (en) * | 2012-11-19 | 2014-06-04 | 株式会社东芝 | Halogen adsorbent, tank for water treatment, and water treatment system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771922A (en) * | 2016-05-25 | 2016-07-20 | 北京科技大学 | Preparation and application methods of copper ion adsorbent |
| CN108970586A (en) * | 2017-05-31 | 2018-12-11 | 南京博络金环保科技有限公司 | A method of utilizing low-concentration ammonia-nitrogen in biological adsorption removing water body |
| CN109289783A (en) * | 2018-10-22 | 2019-02-01 | 北京科技大学 | Utilize garlic stalk waste preparation arsenic removal compounding adsorbent material and application method |
| CN109289786A (en) * | 2018-10-22 | 2019-02-01 | 北京科技大学 | The method of preparation and use of the adsorbent material of anions and canons in water is removed simultaneously |
| CN109331787A (en) * | 2018-10-22 | 2019-02-15 | 北京科技大学 | A kind of production method that can be sterilized simultaneously with the profile of removing heavy metals |
| CN109331786A (en) * | 2018-10-22 | 2019-02-15 | 北京科技大学 | A method of sterilization water-purifying material is made using garlic stalk waste |
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