利用[具体物质]开发生物基材料及其生物混凝动力学建模——一种处理废水的可持续方法

Development of bio-based material from the and its bio-coagulation kinetic modeling-A sustainable approach to treat the wastewater.

作者信息

Varsani Vaishali, Vyas Suhas J, Dudhagara Dushyant R

机构信息

Department of Life Sciences, Bhakta Kavi Narsinh Mehta University, Khadiya-362263, Junagadh, Gujarat, India.

出版信息

Heliyon. 2022 Sep 1;8(9):e10447. doi: 10.1016/j.heliyon.2022.e10447. eCollection 2022 Sep.

The development of bio-coagulants from seeds for sewage wastewater treatment has been investigated. The prepared bio-coagulant was treated with distilled water, HCl, NaOH, and NaCl to surface-functionalize the seed powder (MOSP). The bio-coagulant performance was investigated by monitoring the reduction of turbidity, EC, pH, TS, BOD, and COD from the wastewater. SEM, EDAX, and FTIR characterized the native and functionalized MOSP bio-coagulants. The HCl treated MOSP was found to be effective and have good coagulation activity (∼90%) compared to natural and other MOSPs. The turbidity removal by all the MOPS conformed to the WHO acceptable limit of finished water. Hence, maximum turbidity reduction was recorded in HCl > NaCl > NaOH > Natural (distilled water) treated MOSP. The pseudo-first and second-order kinetics rate also showed the effectiveness against turbidity reduction in municipal sewage water. Hence, the prepared MOSP bio-coagulants could be suitable for primary water treatments.

对用于污水处理的种子源生物絮凝剂的开发进行了研究。将制备的生物絮凝剂用蒸馏水、盐酸、氢氧化钠和氯化钠处理，以使种子粉末（MOSP）表面功能化。通过监测废水中浊度、电导率、pH值、总固体、生化需氧量和化学需氧量的降低来研究生物絮凝剂的性能。扫描电子显微镜（SEM）、能量散射X射线谱（EDAX）和傅里叶变换红外光谱（FTIR）对天然和功能化的MOSP生物絮凝剂进行了表征。结果发现，与天然和其他MOSP相比，经盐酸处理的MOSP有效且具有良好的絮凝活性（约90%）。所有MOPS对浊度的去除均符合世界卫生组织规定的成品水可接受限度。因此，记录到的最大浊度降低情况为：盐酸处理的MOSP＞氯化钠处理的MOSP＞氢氧化钠处理的MOSP＞天然（蒸馏水）处理的MOSP。准一级和二级动力学速率也表明其对城市污水浊度降低有效。因此，制备的MOSP生物絮凝剂可能适用于初级水处理。