Titanium-based coagulation has proved to be effective for algae-laden micro-polluted water purification processes. However, the influence of algae inclusion in surface water treatment by titanium coagulation is barely reported. This study reports the influence of both Microcystis aeruginosa and Microcystis wesenbergii in surface water during polytitanium coagulation. Jar tests were performed to evaluate coagulation performance using both algae-free (controlled) and algae-laden water samples, and floc properties were studied using a laser diffraction particle size analyzer for online monitoring. Results show that polytitanium coagulation can be highly effective in algae separation, removing up to 98% from surface water. Additionally, the presence of algae enhanced organic matter removal by up to 30% compared to controlled water containing only organic matter. Polytitanium coagulation achieved significant removal of fluorescent organic materials and organic matter with a wide range of molecular weight distribution (693–4945 Da) even in the presence of algae species in surface water. The presence of algae cells and/or algal organic matter is likely to function as an additional coagulant or flocculation aid, assisting polytitanium coagulation through adsorption and bridging effects. Although the dominant coagulation mechanisms with polytitanium coagulant were influenced by the coagulant dosage and initial solution pH, algae species in surface water could enhance the charge neutralization capability of the polytitanium coagulant. Algae-rich flocs were also more prone to breakage with strength factors approximately 10% lower than those of algae-free flocs. Loose structure of the flocs will require careful handling of the flocs during coagulation-sedimentation-filtration processes.

钛基混凝已被证明对藻类微污染水净化工艺有效。但是，几乎没有报道藻类夹杂物对钛凝结处理地表水的影响。这项研究报告铜绿微囊藻和韦氏微囊藻的影响在钛凝结过程中地表水中。使用无藻（受控）和载有藻类的水样品进行罐子测试以评估混凝性能，并使用激光衍射粒度分析仪对絮凝特性进行在线监测。结果表明，聚钛凝结法在藻类分离中非常有效，可从地表水中去除多达98％的藻类。此外，与仅含有机物的受控水相比，藻类的存在可将有机物去除率提高多达30％。即使在地表水中存在藻类物种，聚钛混凝也能显着去除具有广泛分子量分布（693-4945 Da）的荧光有机物质和有机物。藻类细胞和/或藻类有机物的存在可能起到了额外的凝结剂或絮凝助剂的作用，通过吸附和桥连作用来辅助聚钛凝结。尽管聚钛凝结剂的主要凝结机理受凝结剂用量和初始溶液pH的影响，但地表水中的藻类可以增强聚钛凝结剂的电荷中和能力。富含藻类的絮凝物也更容易断裂，其强度系数比不含藻类的絮凝物低约10％。絮凝物的松散结构将要求在凝结-沉淀-过滤过程中小心处理絮凝物。尽管聚钛凝结剂的主要凝结机理受凝结剂用量和初始溶液pH的影响，但地表水中的藻类可以增强聚钛凝结剂的电荷中和能力。富含藻类的絮凝物也更容易断裂，其强度系数比不含藻类的絮凝物低约10％。絮凝物的松散结构将要求在凝结-沉淀-过滤过程中小心处理絮凝物。尽管聚钛凝结剂的主要凝结机理受凝结剂用量和初始溶液pH的影响，但地表水中的藻类可以增强聚钛凝结剂的电荷中和能力。富含藻类的絮凝物也更容易断裂，其强度系数比不含藻类的絮凝物低约10％。絮凝物的松散结构将要求在凝结-沉淀-过滤过程中小心处理絮凝物。