Effluent from abattoir industries containing metals ions is known to adversely affect the quality fresh water. Water pollution is a global concern and its effects are difficult to reverse. This study evaluates the efficiency of the use of the shrimp chitosan cross-linked with glutaraldehyde as an adsorbent for the removal of cations in poultry and red meat effluent. The effluent was collected from different abattoirs in the Free State Province in the month of September 2019. Analysis of the physiochemical parameters of both effluent water samples revealed average pH values of between 8.6 and 8.8, electric conductivity (EC) of between 321 and 188 mS/m, turbidity (NTU) values of between 410 and 520, chemical oxygen demand (COD) of between 38 and 259 mg/L and total dissolved solutes (TDS) values of between 1663 and 1813 mg/L. ICP-MS results of both effluent samples showed the presence of alkali (Na and K), alkaline earth metals (Mg, Ca, Sr and Ba) of less than 10 mg/L and transition elements (Cu, Ni, Fe, Cd, Mn and Zn) of ±5 mg/L. The shrimp chitosan cross-linked with glutaraldehyde was first tested on a certified reference material (CRM) to determine the traceability measurement. Results obtained from the CRM revealed an increased adsorption from Sr < K < Mn < Al < Mg < Fe < Na < Ni < Cu < Ca < Cd < Ba < Zn. Analysis of both eluents water from the red and poultry meat effluent samples shows between 55 and 70% of the alkali (Na and K) and alkaline earth metals (Ca and Mg) adsorbed. The obtained t-values (range −1.7 and 3.6) for each elemental analysis were acceptable at 95% confidence interval. Using experimental data new mathematical model were constructed for uptake of Mn, Fe and Zn from abattoir effluent via the adsorbent. For the % PA and % RM, the obtained date show fading memory process with a delay. Whereas CRM, untreated and treated PA and RM sample, a crossover behavior were observed. An exact solution suggested for each model and the decay rate were obtained. Overall stimulations done shows is in good agreement, showing highest removal values for Mn lowest for Zn metal. It was then suggested that, the developed mathematical model was useful for describing the adsorption of the above metals, which could also help in designing the proper way that effluents can be discharge from abattoir industries.

屠宰场工业中含有金属离子的废水已知会对淡水的质量产生不利影响。水污染是全球关注的问题，其影响难以逆转。这项研究评估了用戊二醛交联的虾壳聚糖作为吸附剂去除家禽和红肉废水中阳离子的效率。于2019年9月从自由州省的不同屠宰场收集了污水。对两种污水水样的理化参数进行分析后发现，其平均pH值在8.6至8.8之间，电导率（EC）在321至188 mS之间。/m，浊度（NTU）值介于410和520之间，化学需氧量（COD）介于38和259 mg / L之间，总溶解溶质（TDS）值介于1663和1813 mg / L之间。两种废水样品的ICP-MS结果均表明存在碱（Na和K），碱土金属（Mg，Ca，Sr和Ba）小于10 mg / L以及过渡元素（Cu，Ni，Fe，Cd， Mn和Zn）为±5 mg / L。与戊二醛交联的虾壳聚糖首先在经过认证的参考材料（CRM）上进行测试，以确定可追溯性。从CRM获得的结果表明，Sr <K <Mn <Al <Mg <Fe <Na <Ni <Cu <Ca <Cd <Ba <Zn 对红色和禽肉废水样品中的洗脱液进行的分析表明，吸附的碱金属（Na和K）和碱土金属（Ca和Mg）占55％至70％。获得的每个元素分析的t值（-1.7和3.6范围）在95％置信区间内都是可以接受的。利用实验数据，建立了一个新的数学模型，用于通过吸附剂从屠宰场废水中吸收锰，铁和锌。对于％PA和％RM，所获得的日期显示了淡入淡出的存储过程，并带有延迟。而CRM，未经处理和经过处理的PA和RM样品则观察到交叉行为。为每个模型建议了精确的解决方案，并获得了衰减率。所显示的总体刺激结果非常吻合，显示出最高的Mn去除率和最低的Zn金属去除率。有人认为，建立的数学模型对于描述上述金属的吸附是有用的，这也可以帮助设计可以从屠宰场工业中排出废水的适当方式。