CN104310553B - 高炉除尘灰的资源化利用方法 - Google Patents
高炉除尘灰的资源化利用方法 Download PDFInfo
- Publication number
- CN104310553B CN104310553B CN201410609207.9A CN201410609207A CN104310553B CN 104310553 B CN104310553 B CN 104310553B CN 201410609207 A CN201410609207 A CN 201410609207A CN 104310553 B CN104310553 B CN 104310553B
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- dedusting ash
- concentration
- solution
- furnace dedusting
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 238000003756 stirring Methods 0.000 claims abstract description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 239000002351 wastewater Substances 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 7
- 239000003480 eluent Substances 0.000 claims abstract description 6
- 239000010842 industrial wastewater Substances 0.000 claims abstract description 5
- 238000010612 desalination reaction Methods 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 238000004062 sedimentation Methods 0.000 claims description 10
- 238000004939 coking Methods 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 6
- 230000003311 flocculating effect Effects 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000011069 regeneration method Methods 0.000 claims description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 235000013980 iron oxide Nutrition 0.000 claims description 4
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 239000002894 chemical waste Substances 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 9
- 231100000719 pollutant Toxicity 0.000 abstract description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 238000012216 screening Methods 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 16
- 239000000843 powder Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 238000000643 oven drying Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/80—Destroying solid waste or transforming solid waste into something useful or harmless involving an extraction step
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- 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
-
- 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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
本发明公开了一种高炉除尘灰的资源化利用方法，包括以下步骤：1)对高炉除尘灰进行筛分，筛分出粒径为200～400目的高炉除尘灰；2)将筛分后的高炉除尘灰用水浸泡除盐，除去洗脱液，取不溶物质待用；3)将所述不溶物质按液固体积比为3～5∶1的比例放入体积百分比浓度为10～30％的H2SO4溶液中，在温度为30～50℃下搅拌，得混合液；4)在步骤3)所得混合液中加入双氧水溶液并快速搅拌，当溶液中Fe3+浓度/Fe2+浓度＞4时，调节溶液PH值为4～6，即制得水处理剂；5)将所述水处理剂用作工业废水净化处理中的絮凝剂。本发明不但解决了高炉除尘灰的环境污染与占地面积大的问题，也有效降低了工业废水中污染物的浓度，充分利用了二次资源。
Description
技术领域
本发明涉及固体废弃物资源化技术，具体地指一种高炉除尘灰的资源化利用方法。
背景技术
高炉除尘灰是指炼铁过程中随高炉煤气一起排出的粉尘，一般，每生产一吨铁会相应产生20～60kg高炉除尘灰，该高炉除尘灰中含碳25％～45％，含铁15％～30％，因高炉除尘灰量大，而且其中含有较多环境污染物质，会带来占地面积大及环境污染问题，因此，需要对高炉除尘灰进行合理利用。目前，高炉除尘灰的主要利用方法是将其混入烧结矿和球团矿的配料中作为烧结原料，但由于除尘灰粒度较小，而且含有Zn和Na等碱金属有害元素及杂质，容易导致烧结矿质量下降；也有文献中提到对除尘灰中铁和碳分别进行磁选和浮选富集，以生产铁精粉和炭精粉，但这种利用方法会产生大量尾泥及含油废水等污染物，危害周边坏境。
发明内容
本发明的目的就是要提供一种高炉除尘灰的资源化利用方法，该方法不但解决了高炉除尘灰的环境污染与占地问题，也有效降低了工业废水中污染物的浓度。
为实现上述目的，本发明采用的技术方案是：一种高炉除尘灰的资源化利用方法，包括以下步骤：
1)对高炉除尘灰进行筛分，筛分出粒径为200～400目的高炉除尘灰；
2)将筛分出的高炉除尘灰用水浸泡除盐，除去洗脱液后，取不溶物质待用；
3)将所述不溶物质按液固体积比为3～5∶1的比例放入体积百分比浓度为10～30％的H2SO4溶液中，在温度为30～50℃下搅拌，得混合液；
4)在步骤3)所得混合液中加入双氧水溶液并快速搅拌，当溶液中Fe3+浓度/Fe2+浓度＞4时，调节溶液pH值为4～6，即制得水处理剂；
5)将所述水处理剂用作工业废水净化处理中的絮凝剂。
进一步地，所述步骤4)中，从步骤3)所得混合液的底部按体积比为0.8～1.2∶1的比例加入体积百分比浓度为25～35％的双氧水溶液。
进一步地，所述步骤4)中，当溶液中Fe3+浓度/Fe2+浓度＞4时，用2～6mol/L的NaOH溶液调节溶液pH值为4～5。
进一步地，所述步骤5)中，将所述水处理剂按体积比为0.2～1∶1的比例与焦化废水混合，进行絮凝沉降，沉降时间为40～50min。
进一步地，所述步骤5)中，将所述水处理剂按体积比为0.5～1∶1的比例与氨氮废水混合，进行絮凝沉降，沉降时间为40～50min。
进一步地，所述步骤2)中，所述不溶物质包括再生碳粉，铁氧化物，铝氧化物及硅氧化物。
更进一步地，所述步骤4)中，当溶液中Fe3+浓度/Fe2+浓度为4～10时，调节溶液pH值为4～6。
与现有技术相比，本发明具有以下优点：
其一，本发明在酸溶条件下，利用双氧水对高炉除尘灰中的铁氧化物，未燃尽的炭粒，二氧化硅及氧化铝等固体物质进行改性，得到水处理剂，该水处理剂颗粒结构疏松，比表面积大，具有很强的吸附能力，其中，双氧水对炭粒的改性作用，极大地提升了炭粒的吸附能力。
其二，本发明中，高炉除尘灰颗粒中的部分铁氧化物在双氧水及硫酸的作用下形成了部分聚合硫酸铁，另外，除尘灰中的铝等少量无机盐溶解形成无机混凝剂，使得该水处理剂与工业废水混合后可发生絮凝和吸附等协同作用，从而能有效降低工业废水中污染物和悬浮物浓度。
其三，本发明提出了一种利用钢铁厂低价值高炉除尘灰制备具有吸附、絮凝作用的水处理剂的方法，该方法提高了高炉除尘灰的利用价值，不但解决了高炉除尘灰的环境污染与占地面积大的问题，也有效降低了工业废水中污染物的浓度，充分利用了二次资源。
其四，用本发明的水处理剂处理工业废水时，避免了添加其它药剂可能带来的二次污染问题，而且该废水处理工艺过程简单，净化效果好。
具体实施方式
下面结合具体实施例对本发明作进一步的详细说明，便于更清楚地了解本发明，但它们不对本发明构成限定。
实施例1：
取筛分后粒径为200目的钢铁厂高炉除尘灰粉末为原料，将该高炉除尘灰粉末用自来水浸除盐，除去洗脱液后用烘箱干燥；取干燥不溶物质(主要为再生炭粉，铁、铝、硅的氧化物)，将不溶物质按液固比为3∶1的比例放入体积百分比浓度为10％H2SO4溶液中，并在温度为30～50℃下，优选温度为30℃下搅拌混合；从上述混合溶液的底部按体积比0.8～1.2∶1的比例，优选1∶1的比例缓慢加入体积百分比浓度为25～35％，优选30％的双氧水溶液，快速搅拌，取样测得溶液中Fe3+/Fe2+比例为4.5∶1时，用2mol/LNaOH水溶液调节溶液pH值为4～6，优选pH值为5，搅拌水解20min待用，即制得水处理剂；将所得水处理剂与焦化生化外排水在不同体积比条件下混合，以沉降焦化生化外排水中的污染物，沉降时间为40～45min，优选静置45min后，取上清液测得COD和悬浮物浓度数据如下表1：
表1
实施例2：
取筛分后粒径为400目的钢铁厂高炉除尘灰粉末为原料，将该高炉除尘灰粉末用自来水浸除盐，除去洗脱液后用烘箱干燥；取干燥不溶物质(主要为再生炭粉，铁、铝、硅的氧化物)，将不溶物质按液固比为5∶1的比例放入体积百分比浓度为30％H2SO4溶液中，并在温度为45℃下搅拌混合；从上述混合溶液的底部按体积比1∶1的比例缓慢加入体积百分比浓度为30％的双氧水溶液，快速搅拌，取样测得溶液中Fe3+/Fe2+比例为5∶1时，用6mol/LNaOH水溶液调节pH值为5，搅拌水解20min待用，即制得水处理剂；将所得水处理剂与氨氮废水在不同体积比条件下混合，以沉降氨氮废水中的污染物，静置45min后，取上清液测得氨氮(NH3-N)浓度数据如下表2：
表2
实施例3：
取筛分后粒径为400目的钢铁厂高炉除尘灰粉末为原料，将该高炉除尘灰粉末用自来水浸除盐，除去洗脱液后用烘箱干燥；取干燥不溶物质(主要为再生炭粉，铁、铝、硅的氧化物)，将不溶物质按液固比为4∶1的比例放入体积百分比浓度为30％H2SO4溶液中，并在温度为35℃下搅拌混合；从上述混合溶液的底部按体积比1∶1的比例缓慢加入体积百分比浓度为30％的双氧水溶液，快速搅拌，取样测得溶液中Fe3+/Fe2+比例为9∶1时，用6mol/LNaOH水溶液调节pH值为5，搅拌水解20min待用，即制得水处理剂；将所得水处理剂与焦化生化外排水在不同体积比条件下混合，以沉降焦化生化外排水中的污染物，静置45min后，取上清液测得COD数据如下表3：
表3
从表1～表3数据可以看出，采用本发明制备的水处理剂对焦化生化外排水或氨氮废水进行絮凝沉降处理后，其水质明显优于未采用水处理剂的自然沉降过程。
Claims (8)
1.一种高炉除尘灰的资源化利用方法，包括以下步骤：
1)对高炉除尘灰进行筛分，筛分出粒径为200～400目的高炉除尘灰；
2)将筛分出的高炉除尘灰用水浸泡除盐，除去洗脱液后，取不溶物质待用；
3)将所述不溶物质按液固体积比为3～5∶1的比例放入体积百分比浓度为10～30％的H2SO4溶液中，在温度为30～50℃下搅拌，得混合液；
4)在步骤3)所得混合液中加入双氧水溶液并快速搅拌，当溶液中Fe3+浓度/Fe2+浓度＞4时，调节溶液pH值为4～6，即制得水处理剂；
5)将所述水处理剂用作工业废水净化处理中的絮凝剂。
2.根据权利要求1所述的高炉除尘灰的资源化利用方法，其特征在于：所述步骤4)中，从步骤3)所得混合液的底部按体积比为0.8～1.2∶1的比例加入体积百分比浓度为25～35％的双氧水溶液。
3.根据权利要求1或2所述的高炉除尘灰的资源化利用方法，其特征在于：所述步骤4)中，当溶液中Fe3+浓度/Fe2+浓度＞4时，用2～6mol/L的NaOH溶液调节溶液pH值为4～5。
4.根据权利要求1或2所述的高炉除尘灰的资源化利用方法，其特征在于：所述步骤5)中，将所述水处理剂按体积比为0.2～1∶1的比例与焦化废水混合，进行絮凝沉降，沉降时间为40～50min。
5.根据权利要求1或2所述的高炉除尘灰的资源化利用方法，其特征在于：所述步骤5)中，将所述水处理剂按体积比为0.5～1∶1的比例与氨氮废水混合，进行絮凝沉降，沉降时间为40～50min。
6.根据权利要求1或2所述的高炉除尘灰的资源化利用方法，其特征在于：所述步骤2)中，所述不溶物质包括再生碳粉，铁氧化物，铝氧化物及硅氧化物。
7.根据权利要求1或2所述的高炉除尘灰的资源化利用方法，其特征在于：所述步骤4)中，当溶液中Fe3+浓度/Fe2+浓度为4～10时，调节溶液pH值为4～6。
8.根据权利要求3所述的高炉除尘灰的资源化利用方法，其特征在于：所述步骤4)中，当溶液中Fe3+浓度/Fe2+浓度为4～10时，调节溶液pH值为4～6。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410609207.9A CN104310553B (zh) | 2014-10-31 | 2014-10-31 | 高炉除尘灰的资源化利用方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410609207.9A CN104310553B (zh) | 2014-10-31 | 2014-10-31 | 高炉除尘灰的资源化利用方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104310553A CN104310553A (zh) | 2015-01-28 |
| CN104310553B true CN104310553B (zh) | 2016-06-29 |
Family
ID=52365907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410609207.9A Active CN104310553B (zh) | 2014-10-31 | 2014-10-31 | 高炉除尘灰的资源化利用方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104310553B (zh) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874583A (zh) * | 2015-05-07 | 2015-09-02 | 湖南华菱湘潭钢铁有限公司 | 高炉干式除尘灰的综合处理方法 |
| CN108840430A (zh) * | 2018-07-10 | 2018-11-20 | 天津工业大学 | 一种电催化高炉除尘灰强化上流式厌氧污泥床系统 |
| CN109956536B (zh) * | 2019-03-22 | 2021-11-26 | 武汉钢铁有限公司 | 一种用于焦化废水处理的反应性滤料及制备和使用方法 |
| DE102020006846A1 (de) * | 2020-11-06 | 2022-05-12 | Donau Chemie Ag | Verfahren zur Behandlung einer Flüssigkeit und Zugabequelle dafür |
| CN113461399B (zh) * | 2021-06-21 | 2022-06-14 | 邯郸钢铁集团有限责任公司 | 精炼炉除尘灰无害化处理及在渣罐格栅中利用的方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004050090A (ja) * | 2002-07-22 | 2004-02-19 | Kurita Water Ind Ltd | 吸着剤およびその使用方法 |
| CN102188953A (zh) * | 2011-03-30 | 2011-09-21 | 山西大学 | 一种用于处理氨氮废水的改性粉煤灰及其制备方法 |
| CN102500311A (zh) * | 2011-10-08 | 2012-06-20 | 昆明理工大学 | 一种改性粉煤灰生产吸附剂的方法 |
| CN102580667B (zh) * | 2012-03-01 | 2016-04-20 | 石家庄经济学院 | 一种用于焦化废水深度处理的复合矿物吸附剂及其制法 |
| CN102745787B (zh) * | 2012-06-29 | 2014-01-01 | 武汉钢铁(集团)公司 | 快速絮凝剂及其制备方法 |
-
2014
- 2014-10-31 CN CN201410609207.9A patent/CN104310553B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104310553A (zh) | 2015-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104310553B (zh) | 高炉除尘灰的资源化利用方法 | |
| CN107188330B (zh) | 一种吸附净化酸性废水的方法 | |
| CN109396163A (zh) | 一种提高氯离子溶出率的垃圾飞灰处理工艺 | |
| CN106943991A (zh) | 一种除磷改性钢渣陶粒及其制备方法与应用 | |
| CN104971697A (zh) | 一种用于去除水体中砷污染的磁性生物炭材料的制备及应用方法 | |
| CN105271436A (zh) | 一种利用钢丝绳污泥和废盐制备聚合氯化铁絮凝剂的方法 | |
| CN106977009B (zh) | 一种锂辉石浮选尾矿水的快速处理回用方法 | |
| CN110698174A (zh) | 一种轻质污泥陶粒、其制备方法及应用 | |
| CN104402097A (zh) | 一种高炉除尘灰的资源化利用方法 | |
| CN104874583A (zh) | 高炉干式除尘灰的综合处理方法 | |
| CN111252875A (zh) | 一种含重金属废水的处理工艺 | |
| CN106830251A (zh) | 用于处理脱硫废水的复合壳聚糖絮凝剂及制备方法和应用 | |
| CN109574263A (zh) | 一种萤石选矿废水的处理及回用方法 | |
| CN104438288B (zh) | 一种含砷废料中砷的稳定及分离方法 | |
| CN104150642B (zh) | 一种改性赤泥粉处理污酸废水的方法 | |
| CN102816921A (zh) | 一种无氯提钒工艺 | |
| CN104310535B (zh) | 高炉除尘灰和焦炉除尘灰的资源化利用方法 | |
| CN103007588B (zh) | 一种烧结烟气氨法脱硫工艺产生的硫铵母液净化的方法 | |
| CN105771884A (zh) | 一种吸附水中重金属的分子筛复合材料及其制备方法 | |
| CN105692831A (zh) | 一种高效矿渣基无机除磷混凝剂及其制备方法 | |
| CN106216368B (zh) | 一种含Cr6+污染土壤处理装置及其方法 | |
| CN114105343B (zh) | 一种脱硫废水处理系统协同处理脱硫灰的方法及应用 | |
| CN114210192A (zh) | 一种采用电石渣制备高效脱硫剂及副产活性氧化钙的工艺 | |
| CN107899383A (zh) | 一种采用赤泥和海水制备的混合脱硫剂及其烟气脱硫的方法 | |
| CN204369696U (zh) | 一种污酸中和水的二氧化碳脱硬度系统 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170726 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 15 Wuchang, Wuhan Friendship Avenue, No. 999, block A, layer (Wuhan Iron and steel science and technology innovation department), No. 430080, Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190327 Address after: 430080 122, metallurgical Avenue, Qingshan District, Wuhan, Hubei Patentee after: Wuhan green city construction and Development Co., Ltd. Address before: 430083 Organs of Changqian No. 2 Gate Co., Ltd., Qingshan District, Wuhan City, Hubei Province Patentee before: Wuhan iron and Steel Company Limited |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200715 Address after: Gate 1, changqian, Qingshan District, Wuhan City, Hubei Province Patentee after: Wuhan WISCO Green City Technology Development Co.,Ltd. Address before: 430080 Wuhan, Heilongjiang Province, Qingshan District, metallurgical Road, No. 122, No. Patentee before: BAOWU GREEN CITY CONSTRUCTION Co.,Ltd. |