An efficient and economical treatment technology for heavy metal removal from the electroplating wastewaters is needed for the water purification. Therefore, pure cellulosic materials were derived from two waste fiber (pandanus fruit and durian rind) and conversion of the cellulose into the poly(acrylonitrile)-grafted material was accomplished by free radical grafting system. Thereafter, poly(amidoxime) ligand was produced from the grafted materials. Sorption capacity (q_e) of several toxic metals ions was found to be high, e.g., copper capacity (q_e) was 298.4 mg g⁻¹ at pH 6. In fact, other metal ions, such as cobalt chromium and nickel also demonstrated significant sorption capacity at pH 6. Sorption mechanism played acceptable meet with pseudo second-order rate of kinetic pattern due to the satisfactory correlation with the experimental sorption values. A significant correlation coefficient (R² > 0.99) with Langmuir model isotherm showed the single or monolayer sorption occurred on the surfaces. The reusability study showed that the polymer ligand can be useful up to six cycles with minimum loss (7%) of efficiency and can be used in the extraction of toxic metal ions present in the wastewaters. Therefore, two types of electroplating wastewater were used in this study, one containing high concentration of copper (23 ppm) and iron (32 ppm) with trace level of others heavy metals (IWS 1) and another containing high concentration of copper (85.7 ppm) only with trace level of others heavy metals (IWS 2). This polymeric ligand showed acceptable removal magnitude, up to 98% of toxic metal ions can be removed from electroplating wastewater.

中文翻译：

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废纤维基聚ami胺肟配体从电镀废水中去除重金属

为了净化水，需要一种有效，经济的处理技术，以从电镀废水中去除重金属。因此，纯纤维素材料是由两种废弃纤维（露兜树果实和榴莲果皮）衍生而来的，并且通过自由基接枝系统将纤维素转化为聚丙烯腈接枝材料。此后，从接枝的材料产生聚（ami胺肟）配体。发现几种有毒金属离子的吸附容量（q _e）高，例如，铜容量（q _e）为298.4 mg g ^-1实际上，在pH 6时，其他金属离子（例如钴铬和镍）也表现出显着的吸附能力。由于与实验吸附值具有令人满意的相关性，因此吸附机理在动力学模式的假二阶速率下可以令人满意地满足。 。显着的相关系数（R ²> 0.99）的Langmuir模型等温线表明在表面上发生了单层或单层吸附。可重用性研究表明，聚合物配体最多可使用六个循环，而效率损失最小（7％），并可用于萃取废水中存在的有毒金属离子。因此，本研究使用了两种类型的电镀废水，一种包含高浓度的铜（23 ppm）和铁（32 ppm），以及痕量其他重金属（IWS 1），另一种包含高浓度的铜（85.7 ppm）。 ）仅含痕量其他重金属（IWS 2）。该聚合配体显示出可接受的去除程度，可以从电镀废水中去除多达98％的有毒金属离子。