新型凝胶法制备PAC及除藻效果研究
收稿日期: 2024-06-14
网络出版日期: 2025-10-27
基金资助
国家自然科学基金项目(22276018)
Study on preparation of PAC by a new gel method and its algal removal effect
Received date: 2024-06-14
Online published: 2025-10-27
为制备有效含量高、性能稳定的聚氯化铝，同时有效缩短制备时间，通过新型凝胶法制备了聚氯化铝（PAC）。新型凝胶法聚氯化铝的制备条件优化为：氢氧化铝与微过量的氢氧化钠在微沸条件下反应，得到澄清的偏铝酸钠溶液；向偏铝酸钠溶液中滴加盐酸，中和过量的碱；然后在加热和搅拌条件下向溶液中滴加定量的盐酸反应，得到一定盐基度的PAC产物。研究结果显示：当n（NaOH）/n［Al（OH）3］为1.50时，仅需15 min即可制得偏铝酸钠溶液；盐酸溶液浓度为6.19 mol/L，其滴加速度为15.00 mL/min，加热温度为80 ℃，加热时间为0.5~1.0 h时，制得的聚氯化铝中低中聚态的铝（Alb）有效质量分数达80%以上。将制备的聚氯化铝用于含藻水样的混凝处理，研究结果显示：n（OH-）/n（Al3+）=2.0的自制聚氯化铝在投加量为6.6 mg/L时，对初始浊度为10~40 NTU的含藻水样，浊度去除率达到90%以上、残余铝质量浓度在0.20 mg/L以下。新型凝胶法制备聚氯化铝有效缩短了制备时间，产品有效含量高、混凝效果良好。
孟庆杰 , 曹玲玲 , 霍国友 , 郑怀礼 , 孙漫梨 . 新型凝胶法制备PAC及除藻效果研究[J]. 无机盐工业, 2025 , 57(10) : 81 -89 . DOI: 10.19964/j.issn.1006-4990.2024-0337
In order to prepare polyaluminum chloride（PAC） with high effective content and stable performance，and effectively shorten the preparation time，a new gel method was used to prepare PAC.The preparation conditions of polyaluminium chloride by the new gel method were optimized as follows：aluminum hydroxide was reacted with slightly excessive sodium hydroxide under slightly boiling conditions to obtain a clear sodium metaaluminate solution.Hydrochloric acid was dropped into sodium metaaluminate solution to neutralize excess alkali.Then，under the conditions of heating and stirring，a quantitative amount of hydrochloric acid was added to the solution for reaction to obtain PAC products with a certain basicity.The results showed that when n（NaOH）/n［Al（OH）3］ was 1.50，sodium meta-aluminate solution could be prepared in only 15 minutes.When the concentration of hydrochloric acid solution was 6.19 mol/L，the dropping speed was 15.00 mL/min，the heating temperature was 80 ℃，and the heating time was 0.5~1.0 h，the effective content of Alb in polyaluminum chloride was more than 80%.The prepared polyaluminum chloride was used for coagulation treatment of algae containing water samples.The results showed that when the dosage of n（OH-）/n（Al3+）=2.0 homemade polyaluminum chloride was 6.6 mg/L，the turbidity removal rate of algae containing water samples with initial turbidity of 10~40 NTU was more than 90%，and the residual aluminum concentration was less than 0.20 mg/L.The new gel method could effectively shorten the preparation time，and the product had high effective content and good coagulation effect.
| [1] | 希日古丽·麦木提敏，土玛日斯·木合塔尔，王云，等.纳米塑料对硫酸铜抑制铜绿微囊藻生长的影响作用［J］.生态毒理学报，2024，19（2）：359-366. |
| MAMTIMIN Xirigul， MUHTAR Tumaris， WANG Yun，et al.Effects of CuSO4 on cyanobacterium（microcystis aeruginosa） in presence of nanoplastics［J］.Asian Journal of Ecotoxicology，2024，19（2）：359-366. | |
| [2] | 陈丹，王华生，周振宁，等.微囊藻毒素去除技术研究现状及进展［J］.环境科学与技术，2024，47（2）：215-223. |
| CHEN Dan， WANG Huasheng， ZHOU Zhenning，et al.Recent progress on removal technology of microcystins［J］.Environmental Science & Technology，2024，47（2）：215-223. | |
| [3] | 何青峰，何朝晖，杨玉梅，等.中国铝铁盐工业的现状及发展趋势［J］.无机盐工业，2021，53（6）：123-127. |
| HE Qingfeng， HE Zhaohui， YANG Yumei，et al.Current status and development trend of China′s aluminum and iron salt industry［J］.Inorganic Chemicals Industry，2021，53（6）：123-127. | |
| [4] | 王丽娟，燕可洲，郭志强，等.钠盐活化赤泥-煤矸石酸浸液制备聚合氯化铝［J］.无机盐工业，2023，55（4）：76-83，103. |
| WANG Lijuan， YAN Kezhou， GUO Zhiqiang，et al.Preparation of poly-aluminum chloride from acid leaching liquor of red mud-coal gangue activated by sodium salt［J］.Inorganic Chemicals Industry，2023，55（4）：76-83，103. | |
| [5] | 唐晓旻.新型凝胶法制备聚合氯化铝及含藻水体中dEOM和bEOM的混凝去除研究［D］.重庆：重庆大学，2016. |
| TANG Xiaomin.Preparation of polyaluminum chloride by new gel method and study on coagulation removal of dEOM and bEOM in algae containing water［D］.Chongqing：Chongqing University，2016. | |
| [6] | 刘莉，程春明，李风亭.凝胶法制备聚氯化铝及其形态分布和混凝性能研究［J］.中国给水排水，2010，26（13）：56-59. |
| LIU Li， CHENG Chunming， LI Fengting.Study on species distribution and coagulation performance of poly-aluminum chloride prepar- | |
| ed with gel method［J］.China Water & Wastewater，2010，26（13）：56-59. | |
| [7] | 吕萍，李慧莉，徐勇，等.营养物质对铜绿微囊藻生长和藻际细菌的影响［J］.环境科学，2022，43（10）：4502-4510. |
| Ping Lü， LI Huili， XU Yong，et al.Effects of nutrients on the growth of microcystis aeruginosa and bacteria in the phycosphere［J］.Environmental Science，2022，43（10）：4502-4510. | |
| [8] | 纪丁愈，李云祯，邹渝.铁尾矿制备聚合硫酸铁实验及造纸 |
| 污水处理效果初步评价［J］.无机盐工业，2021，53（8）：96- 100. | |
| JI Dingyu， LI Yunzhen， ZOU Yu.Preparation of polymeric ferric sulfate from iron tailings and preliminary evaluation of papermaking wastewater treatment［J］.Inorganic Chemicals Industry，2021，53（8）：96-100. | |
| [9] | 圣伟佳，王威振，张晋华，等.聚合氯化铝/聚丙烯酰胺复合改性凹凸棒土絮凝材料的制备及其除浊除藻效果［J］.环境工程学报，2023，17（10）：3245-3256. |
| SHENG Weijia， WANG Weizhen， ZHANG Jinhua，et al.Preparation of polyaluminium chloride/polyacrylamide composite-modified attapulgite flocculation material and its removal effect of turbidity and algae［J］.Chinese Journal of Environmental Engineering，2023，17（10）：3245-3256. | |
| [10] | 吴悦菡，田晨浩，冯成洪.单体铝与纳米铝团簇絮凝剂的残余毒性效应［J］.环境化学，2021，40（5）：1535-1545. |
| WU Yuehan， TIAN Chenhao， FENG Chenghong.Residual toxicity effects of monomeric aluminum and polymeric nanometer aluminum cluster［J］.Environmental Chemistry，2021，40（5）：1535-1545. | |
| [11] | 汪绮萱，田晨浩，冯成洪.纳微米塑料的聚合铝铁强化混凝去除及铝残余特征［J］.环境科学学报，2023，43（12）：259-267. |
| WANG Qixuan， TIAN Chenhao， FENG Chenghong.Enhanced removal of micro- and nano-plastic and residual Al characteristics by using polymeric aluminium-ferric coagulant［J］.Acta Scientiae Circumstantiae，2023，43（12）：259-267. | |
| [12] | 王敏，毛玉红，陈超，等.水处理工艺中铝盐水解物的毒性、形态及控制研究进展［J］.化工进展，2023，42（S1）：479-488. |
| WANG Min， MAO Yuhong， CHEN Chao，et al.Progress on the toxicity，morphology and control of aluminum salt hydrolysates in water treatment process［J］.Chemical Industry and Engineering Progress，2023，42（S1）：479-488. | |
| [13] | 韦桥权，成官文，张宇玲，等.铝土矿选洗矿泥混凝沉降试验及机理研究［J］.金属矿山，2022（7）：198-205. |
| WEI Qiaoquan， CHENG Guanwen， ZHANG Yuling，et al.Experimental and mechanism research on coagulation settlement of bauxite ore dressing slime［J］.Metal Mine，2022（7）：198-205. | |
| [14] | 郑怀礼，张会琴，蒋绍阶，等.聚磷硫酸铁的形貌结构与絮凝机理［J］.光谱学与光谱分析，2011，31（5）：1409. |
| ZHENG Huaili， ZHANG Huiqin， JIANG Shaojie，et al.Topography structure and flocculation mechanism of polymeric phosphate ferric sulfate（PPFS）［J］.Spectroscopy and Spectral Analysis，2011，31（5）：1409. |
/
| 〈 |
|
〉 |
