CN106006893A - Treatment method for soluble phosphate radicals in phosphate rock tailings - Google Patents
Treatment method for soluble phosphate radicals in phosphate rock tailings Download PDFInfo
- Publication number
- CN106006893A CN106006893A CN201610521456.1A CN201610521456A CN106006893A CN 106006893 A CN106006893 A CN 106006893A CN 201610521456 A CN201610521456 A CN 201610521456A CN 106006893 A CN106006893 A CN 106006893A
- Authority
- CN
- China
- Prior art keywords
- tailings
- acid group
- phosphorite tailings
- titanium pigment
- processing method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a treatment method for soluble phosphate radicals in phosphate rock tailings. The method comprises the step that the soluble phosphate radicals are removed by controlling the pH value of phosphate rock tailing pulp to be 7-9 by adding lime into the phosphate rock tailing pulp or adding a calcium chloride solution and a sodium hydroxide solution into the phosphate rock tailing pulp. According to the method, the technological process is simple, the cost is low, and the risk that phosphorous pollution is caused to the environment is eliminated through the treated phosphate rock tailings. After the phosphate rock tailings are treated through the method, the phosphorus content in filtrate of the phosphate rock tailing pulp is less than 1.0 mg/L and reaches the second level or above of the phosphorus content standard in 'integrated wastewater discharge standard'(GB8978-1996).
Description
Technical field
The invention belongs to field of waste water treatment, particularly relate to the processing method of titanium pigment acid group in a kind of phosphorite tailings.
Background technology
In phosphate reverse flotation dolomite flow process, typically require addition sulphuric acid or phosphoric acid or the nitration mixture of the two as Phosphate minerals inhibitor and pH regulator, when adding strong acid sulphuric acid, Phosphate minerals meeting and acid reaction, make insoluble phosphate radical in Phosphate minerals become the phosphate radical of solubility, enter in ore pulp solution, make in phosphorite tailings ore pulp containing higher titanium pigment acid group, when adding phosphoric acid, the titanium pigment acid group in mine tailing ore pulp is higher.Phosphorite tailings is after dense, and after being delivered to tailings reservoir for piling or filtering, dry heap is deposited, and the most still contains higher titanium pigment acid ion, the most treated, then there is the risk causing environmental phosphorus pollution.
The processing method of phosphorus-containing wastewater has: the methods such as chemical precipitation method dephosphorization, bioanalysis dephosphorization, absorption method dephosphorization, ion exchange dephosphorization, constructed wetland plant dephosphorization.Chemical precipitation method is relatively effective to the waste water ratio that phosphorus content is higher, and dephosphorization efficiency is high, and adaptability is good, and when phosphorus content is relatively low, chemical precipitation method effect is bad.Biological dephosphorization is applicable to the organic wastewater of relatively low phosphorus content.Absorption method dephosphorization and ion exchange dephosphorization are applicable to the relatively low waste water of phosphorus content or the less waste water for the treatment of capacity, and adsorbent needs activation processing mostly, and adsorption capacity is limited, Regeneration Treatment difficulty, and adsorbent amount is relatively big, and raw material sources are limited.Constructed wetland plant dephosphorization is applicable to the waste water that content is relatively low, and treating capacity is little, and needs bigger disposal field.
Summary of the invention
The technical problem to be solved is for the deficiencies in the prior art, it is provided that the processing method of titanium pigment acid group in the phosphorite tailings of a kind of new simple to operate, high treating effect.
The technical problem to be solved is to be realized by following technical scheme.The present invention is the processing method of titanium pigment acid group in a kind of phosphorite tailings, it is characterized in: the method is by adding Calx in phosphorite tailings ore pulp, or adding calcium chloride solution and sodium hydroxide solution, it is 7-9 that phosphorus ore controls mine tailing slurry pH, removes titanium pigment acid group.
The processing method of titanium pigment acid group in a kind of phosphorite tailings of the present invention, its further preferred technical scheme is: Calx, or calcium chloride solution with sodium hydroxide solution consumption is: make to participate in reaction system the Soluble Ca of reaction2+、Mg2+With solubility PO4 3-Mol ratio is not less than 1.5:1, and control mine tailing slurry pH is 7.2-8.5.
The processing method of titanium pigment acid group in a kind of phosphorite tailings of the present invention, its further preferred technical scheme is: it specifically comprises the following steps that
(1) the phosphorite tailings ore pulp after dense is added agitator tank；
(2) add Calx to agitator tank, or add calcium chloride solution and sodium hydroxide solution；
(3) stirring mine tailing ore pulp；
(4) dry heap after mine tailing pulp conveying to tailings reservoir for piling or filtration is deposited.
In above-mentioned steps (3), described mixing time is more than 1min.
Compared with prior art, the invention have the advantage that and first use chemical precipitation method to remove most titanium pigment acid group, then utilize the calcium mineral in phosphorite tailings and the magnesium-containing mineral chemisorbed to phosphate radical, remove the titanium pigment acid group of trace in phosphorite tailings water further.The inventive method handling process is simple, and phosphorus adsorbent source abundance, without activation processing, without Regeneration Treatment, processing cost is cheap.After the inventive method processes, in the filtrate of phosphorite tailings ore pulp, phosphorus content is less than 1.0mg/L, reach the standard above grade 2 of " integrated wastewater discharge standard " (GB8978-1996) phosphorus content, the method technological process is simple, with low cost, the phosphorite tailings after process eliminates the risk causing phosphorus to pollute environment.
Detailed description of the invention
The concrete technical scheme of the present invention described further below, in order to those skilled in the art is further appreciated by the present invention, and does not constitute the restriction to its right.
Embodiment 1, the processing method of titanium pigment acid group in a kind of phosphorite tailings, under phosphorus ore acid condition in reverse floatation process, reverse flotation mine tailing is after dense, and after needing to be delivered to tailings reservoir for piling or filter, dry heap is deposited, and wherein contains higher titanium pigment acid ion, the most treated, then there is the risk causing environmental phosphorus pollution, the present embodiment uses a kind of straightforward procedure to process titanium pigment acid ion therein, and the concrete step that processes is:
1) the phosphorite tailings ore pulp after dense is added agitator tank；
2) adding lime milk solution to agitator tank, control phosphorite tailings slurry pH 7-9, make substantial amounts of titanium pigment acid group be removed by chemical precipitation method in the basic conditions, lime consumption is: make to participate in reaction system the solubility (Ca of reaction2++Mg2+) and solubility PO4 3-Mol ratio is more than or equal to 1.5:1；
3) mine tailing flowsheet of slurry agitation a period of time, making that granularity is less, specific surface area tailings particles relatively big, that absorbability is stronger fully adsorbs with the trace amounts of phosphorus acid ion in water, remove titanium pigment acid group further, mixing time is more than 1min；
4) after Tailings Slurry being delivered to tailings reservoir for piling or filtering, dry heap is deposited.
Embodiment 2, the processing method of titanium pigment acid group in a kind of phosphorite tailings of the present invention, another embodiment is, adds calcium chloride solution to agitator tank and replaces lime milk solution with sodium hydroxide solution, the most effectively removes titanium pigment acid group in phosphorite tailings.
Embodiment 3, the processing method test one of titanium pigment acid group in a kind of phosphorite tailings.
The untreated front water quality of phosphorite tailings water: pH
5.80, Ca2+132.40
mg/L, Mg2+ 214.40 mg/L, P 186.70mg/L。
Adding the titanium pigment acid group in lime treatment phosphorite tailings water, lime consumption is: make to participate in reaction system the solubility (Ca of reaction2++Mg2+) and solubility PO4 3-Mol ratio is equal to 4.0:1, controls phosphorite tailings slurry pH 7-9, stirs 10min.
Water quality: pH after the process of phosphorite tailings water
8.15, Ca2+102.40
mg/L, Mg2+60.80 mg/L, containing P 0.87mg/L.
Embodiment 4, the processing method test two of titanium pigment acid group in a kind of phosphorite tailings.
The untreated front water quality of phosphorite tailings water: pH
5.80, Ca2+132.40
mg/L, Mg2+ 214.40 mg/L, P 186.70mg/L。
Adding the titanium pigment acid group in lime treatment phosphorite tailings water, lime consumption is: make to participate in reaction system the solubility (Ca of reaction2++Mg2+) and solubility PO4 3-Mol ratio is equal to 4.5:1, controls phosphorite tailings slurry pH 7-9, stirs 10min.
Water quality: pH after the process of phosphorite tailings water
8.96, Ca2+118.20
mg/L, Mg2+55.00 mg/L, containing P 0.72mg/L.
Embodiment 5, the processing method test three of titanium pigment acid group in a kind of phosphorite tailings.
The untreated front water quality of phosphorite tailings water: pH
5.80, Ca2+132.40
mg/L, Mg2+ 214.40 mg/L, P 186.70mg/L。
Adding calcium chloride solution and process the titanium pigment acid group in phosphorite tailings water with sodium hydroxide solution, calcium chloride consumption is: make to participate in reaction system the solubility (Ca of reaction2++Mg2+) and solubility PO4 3-Mol ratio is equal to 4.0:1, controls phosphorite tailings slurry pH 7-8, stirs 5min.
Water quality: pH after the process of phosphorite tailings water
7.81, Ca2+102.40
mg/L, Mg2+53.60mg/L, containing P 0.95mg/L.
Embodiment 6, the processing method test four of titanium pigment acid group in a kind of phosphorite tailings.
The untreated front water quality of phosphorite tailings water: pH
5.80, Ca2+132.40
mg/L, Mg2+ 214.40 mg/L, P 186.70mg/L。
Adding calcium chloride solution and process the titanium pigment acid group in phosphorite tailings water with sodium hydroxide solution, calcium chloride consumption is: make to participate in reaction system the solubility (Ca of reaction2++Mg2+) and solubility PO4 3-Mol ratio is equal to 4.0:1, controls phosphorite tailings slurry pH 7.2-8.5, stirs 5min.
Water quality: pH after the process of phosphorite tailings water
8.87, Ca2+95.40
mg/L, Mg2+62.70 mg/L, containing P 0.83mg/L.
Embodiment 7, the processing method test five of titanium pigment acid group in a kind of phosphorite tailings.
The untreated front water quality of phosphorite tailings water: pH
6.03, Ca2+778.00
mg/L, Mg2+ 883.00 mg/L,P 40.85mg/L。
Adding sodium hydroxide solution and process the titanium pigment acid group in phosphorite tailings water, sodium hydroxide concentration is: control phosphorite tailings slurry pH 8-9, stirs 5min.
Water quality: pH 8.83, Ca after the process of phosphorite tailings water2+455.00 mg/L, Mg2+136.00 mg/L, containing P 0.20mg/L.
Claims (4)
1. the processing method of titanium pigment acid group in a phosphorite tailings, it is characterized in that: the method is by adding Calx in phosphorite tailings ore pulp, or adding calcium chloride solution and sodium hydroxide solution, it is 7-9 that phosphorus ore controls mine tailing slurry pH, removes titanium pigment acid group.
The processing method of titanium pigment acid group in a kind of phosphorite tailings, it is characterised in that: Calx, or calcium chloride solution with sodium hydroxide solution consumption is: make reaction system participates in the Soluble Ca of reaction2+、Mg2+With solubility PO4 3-Mol ratio is not less than 1.5:1, and control mine tailing slurry pH is 7.2-8.5.
The processing method of titanium pigment acid group in a kind of phosphorite tailings the most according to claim 1 or claim 2, it is characterised in that: it specifically comprises the following steps that
(1) the phosphorite tailings ore pulp after dense is added agitator tank；
(2) add Calx to agitator tank, or add calcium chloride solution and sodium hydroxide solution；
(3) stirring mine tailing ore pulp；
(4) dry heap after mine tailing pulp conveying to tailings reservoir for piling or filtration is deposited.
The processing method of titanium pigment acid group in a kind of phosphorite tailings, it is characterised in that: the mixing time of step (3) is more than 1min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521456.1A CN106006893A (en) | 2016-07-05 | 2016-07-05 | Treatment method for soluble phosphate radicals in phosphate rock tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521456.1A CN106006893A (en) | 2016-07-05 | 2016-07-05 | Treatment method for soluble phosphate radicals in phosphate rock tailings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106006893A true CN106006893A (en) | 2016-10-12 |
Family
ID=57107427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610521456.1A Pending CN106006893A (en) | 2016-07-05 | 2016-07-05 | Treatment method for soluble phosphate radicals in phosphate rock tailings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106006893A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240428A (en) * | 2019-06-14 | 2019-09-17 | 武汉理工大学 | A method of α high strength gypsum is prepared using carbide slag modification phosphorus ore |
| CN111013080A (en) * | 2019-12-30 | 2020-04-17 | 贵州昊华工程技术有限公司 | Method for harmless treatment of phosphate ore dressing tailing slag |
| CN111203173A (en) * | 2020-01-16 | 2020-05-29 | 陈赫然 | Phosphorus removal material based on collophanite tailings and preparation and application methods thereof |
| CN114515405A (en) * | 2020-11-18 | 2022-05-20 | 中蓝连海设计研究院有限公司 | Method for reducing total phosphorus in phosphorus tailings |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020377A (en) * | 2010-10-15 | 2011-04-20 | 中国海洋石油总公司 | Method for treating collophanite positive and reverse flotation beneficiation wastewater |
| CN103880135A (en) * | 2014-03-28 | 2014-06-25 | 中蓝连海设计研究院 | Treatment method of wastewater generated during phosphorus ore direct and reverse flotation |
| CN203922903U (en) * | 2014-07-01 | 2014-11-05 | 魏明贺 | A kind of mine tailing wastewater treatment system |
-
2016
- 2016-07-05 CN CN201610521456.1A patent/CN106006893A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020377A (en) * | 2010-10-15 | 2011-04-20 | 中国海洋石油总公司 | Method for treating collophanite positive and reverse flotation beneficiation wastewater |
| CN103880135A (en) * | 2014-03-28 | 2014-06-25 | 中蓝连海设计研究院 | Treatment method of wastewater generated during phosphorus ore direct and reverse flotation |
| CN103880135B (en) * | 2014-03-28 | 2015-12-09 | 中蓝连海设计研究院 | A kind for the treatment of process of phosphorus ore direct reverse flotation waste water |
| CN203922903U (en) * | 2014-07-01 | 2014-11-05 | 魏明贺 | A kind of mine tailing wastewater treatment system |
Non-Patent Citations (1)
| Title |
|---|
| 刘汉湖 等编著: "《城市废水人工湿地处理技术》", 31 October 2006, 中国矿业大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240428A (en) * | 2019-06-14 | 2019-09-17 | 武汉理工大学 | A method of α high strength gypsum is prepared using carbide slag modification phosphorus ore |
| CN111013080A (en) * | 2019-12-30 | 2020-04-17 | 贵州昊华工程技术有限公司 | Method for harmless treatment of phosphate ore dressing tailing slag |
| CN111203173A (en) * | 2020-01-16 | 2020-05-29 | 陈赫然 | Phosphorus removal material based on collophanite tailings and preparation and application methods thereof |
| CN114515405A (en) * | 2020-11-18 | 2022-05-20 | 中蓝连海设计研究院有限公司 | Method for reducing total phosphorus in phosphorus tailings |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108883999B (en) | Recovery of phosphorus compounds from wastewater | |
| CN105060545B (en) | A kind of system and method for sofening treatment Desulphurization for Coal-fired Power Plant waste water | |
| US4772307A (en) | Process for preparing an agricultural fertilizer from sewage | |
| CN105906142B (en) | A kind of landfill leachate advanced treatment system and processing method | |
| CN106006893A (en) | Treatment method for soluble phosphate radicals in phosphate rock tailings | |
| CN111013080B (en) | Method for harmless treatment of phosphate ore dressing tailing slag | |
| CN102092871A (en) | Method for reclaiming nitrogen and phosphorus in nitrogen and phosphorus-containing wastewater by using bittern as magnesium source | |
| CN107089744B (en) | A kind of method of desulfurization wastewater advanced treating zero-emission | |
| CN109384332A (en) | A kind of method of coal burning flue gas desulfurization wastewater treatment | |
| CN105601036A (en) | Method for treating chemical nickel plating waste water on basis of ozonation and biochemical technique | |
| CN105502765B (en) | System and method for treating desulfurization wastewater and recycling resources cooperatively | |
| Xiao et al. | Utilizing the supernatant of waste sulfuric acid after dolomite neutralization to recover nutrients from swine wastewater | |
| CN101484392A (en) | Method and apparatus for treating selenium-containing wastewater | |
| CN213446596U (en) | Calcium method is handled high phosphorus and is contained nitrogen industrial waste water system | |
| CN107935294A (en) | Wet desulphurization slurry solid-liquid separating method and three header process modification methods | |
| CN105217836B (en) | A kind of method using desulfurization wastewater removal phosphor in sewage | |
| CN112960811A (en) | Resourceful pretreatment system and method for desulfurization wastewater of coal-fired power plant | |
| CN112321009A (en) | Desulfurization wastewater treatment agent and treatment method | |
| CN103570159A (en) | Device for treating high-concentration ammonia nitrogen in coal chemical wastewater in vortex mixing dispersion way by using surfactant | |
| RU2593877C2 (en) | Method for cleaning discharge fluids from phosphates and sulphates | |
| CN111072153A (en) | Desulfurization microbial inoculum and sewage treatment technology applying same | |
| JP2002205077A (en) | Method and apparatus for treating organic sewage | |
| CN103449584A (en) | Ammonia-nitrogen wastewater treatment method | |
| CN110342710A (en) | High chlorine low-sulfur acid group waste water treatment system and its technique | |
| CN109626623A (en) | A kind for the treatment of process of cupric and ammonia nitrogen waste water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination |