Page 175 - 《精细化工》2021年第7期
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第 7 期                   雷增江,等:  铝污泥基复合凝胶球对 Cr(Ⅵ            )的吸附性能与机理                    ·1457·


                                                               来应用在工业化水处理领域可考虑以下方面:加入
                                                               磁性还原类材料,可提高去除性能,并利用外部磁
                                                               场进行回收、循环利用,减少吸附剂的损失;选取
                                                               对环境无毒害的交联剂和高效解吸剂,防止二次污
                                                               染的产生;未来可制备具有蜂窝状的孔结构污泥基
                                                               凝胶球材料,以高效吸附溶液中的污染物。
                                                               参考文献:

                                                               [1]   NOROUZI S, HEIDARI M, ALIPOUR V,  et al. Preparation,
                                                                   characterization and Cr(Ⅵ ) adsorption evaluation of NaOH-activated
                                                                   carbon produced from Date Press Cake: An agro-industrial waste[J].
                                                                   Bioresour Technol, 2018, 258: 48-56.
                                                               [2]   HUANG X X, LIU Y G, LIU S B, et al. Effective removal of Cr( ) Ⅵ
                                                                   using  β-cyclodextrin-chitosan modified biochars with adsorption/
                                                                   reduction bifuctional roles[J]. RSC Advances, 2016, 6(1): 94-104.
                                                               [3]   KUMAR A, JENA H M. Adsorption of Cr(Ⅵ ) from aqueous phase
                                                                   by high surface area activated carbon prepared by chemical activation
                                                                   with ZnCl 2[J]. Process Safety  and Environmental Protection, 2017,
                                                                   109: 63-71.
                                                               [4]   XU J  L (徐建玲),  ZHANG D (张頔), NIE M Q (聂苗青),  et al.
                                                                             6+
                                                                   Adsorption of Cr  on polyethyleneimine-functionalized straw biochar
                                                                   from aqueous solution[J]. Chemical Journal of Chinese Universities

                                                                   (高等学校化学学报), 2020, 41(1): 155-161.
            a—全谱图;b—吸附后的 Cr 2p 谱图;c—吸附前后 N 1s 谱图;              [5]   TIE J X, CHEN D, WAN Y J, et al. Adsorption removal of phosphorus
            d—吸附前后的 Fe 2p 谱图;e—吸附前后的 Al 2p 谱图                      from aqueous solution by heat-activated alum sludge[J]. Asian Journal
                 图 11  AS-GEL 吸附 Cr(Ⅵ)前后的 XPS 谱图                   of Chemistry, 2013, 25(16): 9129-9134.
            Fig. 11    XPS  spectra of  AS-GEL before and after Cr(Ⅵ)   [6]  HAN Y  (韩芸), HU Y J (胡玉洁), LIAN J (连洁), et al. Phosphorus
                    adsorption                                     removal performance and mechanism of modified zeolite using alum
                                                                   sludge acidified extraction liquid[J]. Environmental Science (环境科
                                                                   学), 2019, 40(8): 3660-3667.
            3   结论                                             [7]   ZHAO X H, ZHAO Y Q, WANG W K, et al. Key issues to consider
                                                                   when using alum sludge as substrate in constructed wetland[J]. Water
                (1)通过 SEM、FTIR 分析材料的微观结构和                          Science & Technology, 2015, 71(12): 1775-1782.
                                                               [8]   MAQBOOL N, KHAN  Z,  ASGHAR A.  Reuse of alum sludge for
            官能团组分。与 AS 相比,AS-GEL 的表面结构发生
                                                                   phosphorus removal from municipal wastewater[J]. Desalination and
            明显变化,表面具有均匀的层状凸起,羟基、氨基                                 Water Treatment, 2016, 57(28): 13246-13254.
            等官能团数量增加。通过 FTIR、XPS 分析,参与反                        [9]   WANG Y Q, FENG Y, ZHANG X F, et al. Alginate-based attapulgite
                                                                   foams as efficient and recyclable adsorbents for the removal of heavy
            应基团有氨基、羟基、羧基及 AS-GEL 的硅氧键,                             metals[J]. Journal of Colloid and Interface Science, 2018, 514: 190-
            其主要机理有质子化基团对 Cr(Ⅵ)的静电吸附及还                              198.
            原作用,还原后的 Cr(Ⅲ)可被活性基团吸附。                            [10]  ZENG H P (曾辉平), WANG F S (王繁烁), YU Y P (于亚萍), et al.
                                                                   Preparation  of chitosan-alginate adsorbent contained  Fe-Mn sludge
                (2)单因素实验结果表明,pH=4、投加量为                             and its potential for As(Ⅴ ) removal[J]. China Environmental Science
            1.2 g/L、温度为 35  ℃、吸附时间为 120 min,AS-GEL                 (中国环境科学), 2020, 40(3): 1146-1155.
                                                               [11]  YAO  W H (姚温浩), YU F (于飞), MA J (马杰). Preparation of
            对 Cr(Ⅵ)的最大吸附量为 73.364 mg/g。准一级动力
                                                                   alginate composite gel and its application in water treatment[J].
            学方程和准二级动力学方程均可以良好地拟合实验                                 Progress in Chemistry (化学进展), 2018, 30(11): 1722-1733.
            数据,吸附过程同时存在物理和化学作用。AS-GEL                          [12]  DAI X H, ZHANG S X, WATERHOUSE G I N, et al. Recyclable
                                                                   polyvinyl alcohol sponge containing flower-like layered double
            对 Cr(Ⅵ)的吸附行为可由 Langmuir 更好地描述。共存                       hydroxide microspheres for efficient removal of As(Ⅴ ) anions and
                                              –
                                          –
                                    3–
            阴离子影响大小顺序为 PO 4 >NO 3 >Cl 。通过 5 次吸                     anionic dyes from water[J]. Journal  of Hazardous Materials, 2019,
            附-解吸实验,其吸附量保持初次吸附量的 89.71%,                            367: 286-292.
                                                               [13]  VATANPOUR V, SALEHI E, SAHEBJAMEE N, et al. Novel chitosan/
            AS-GEL 可重复利用于对 Cr(Ⅵ)的吸附。                               polyvinyl alcohol thin membrane adsorbents modified with detonation
                (3)利用铝污泥作为基体,混合海藻酸钠和聚                              nanodiamonds:  Preparation, characterization, and adsorption
                                                                   performance[J]. Arabian Journal of Chemistry, 2020, 13(1):  1731-
            乙烯醇形成胶溶液,制备出三维立体的凝胶球吸附
                                                                   1740.
            剂(AS-GEL)。相比于其他粉末污泥吸附剂其具有                          [14]  MEDINA  L, CAROSIO F, BERGLUND L  A.  Recyclable
            高效、固液易分离、相对环保等优势,为污泥基材                                 nanocomposite foams of poly(vinyl alcohol), clay and cellulose
                                                                   nanofibrils-Mechanical properties and flame retardancy[J]. Composites
            料去除水体重金属污染物提供了一定的理论参考。
                                                                   Science and Technology, 2019, 182:107762.
                (4)由于凝胶球吸附材料处在实验室阶段,未                          [15]  ZHANG H,  OMER A M,  HU  Z H,  et al. Fabrication of  magnetic
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