Natural coagulants have shown its coagulation efficiency as reported in a substantial number of research articles. However, the acceptance and widespread application of natural coagulants in water industry is still low. It is necessary to conduct a review to boost the potential of using natural coagulants by highlighting the current development and the efforts for improving the capability of natural coagulants, including showing the compatibility of natural coagulants with other treatment technologies in integrated/hybrid treatment process; the modification of natural coagulants for marked improvement in coagulation performance efficiency; the possibility of hybridizing natural coagulants with other types of coagulants; the improvement of extraction and purification approaches for high purity of natural coagulants; and the synthesis of multifunctional natural coagulants. Though the current progress of natural coagulants is quite encouraging, perspectives from sustainability assessment showed that the acceptance and commercialization of natural coagulants are hindered by two main challenges: practicality and feasibility of real field application and sustainability of using natural coagulants overlooking technical, environmental, economic, and social aspects. Future research focusing on these issues may help to clarify the uncertainties shrouded on natural coagulants and at the same time shifting the water industry to be more sustainable.

正如大量研究文章所报道的那样，天然混凝剂已显示出其凝结效率。但是，天然凝结剂在水工业中的接受程度和广泛应用仍很低。有必要进行审查以强调自然凝结剂的最新发展和努力，以提高天然凝结剂的使用潜力，包括在综合/混合处理过程中显示自然凝结剂与其他处理技术的相容性；天然凝结剂的改性，以显着提高凝结性能效率；天然凝结剂与其他类型凝结剂杂交的可能性；改进高纯度天然混凝剂的提取和纯化方法；以及多功能天然凝结剂的合成。尽管目前天然混凝剂的进展令人鼓舞，但可持续性评估的观点表明，天然混凝剂的接受和商业化受到两个主要挑战的阻碍：实际应用的实用性和可行性以及俯瞰技术，环境，经济的天然混凝剂的可持续性，以及社交方面。围绕这些问题的未来研究可能有助于澄清自然混凝剂所笼罩的不确定性，同时也将水产业转变为更具可持续性的产业。可持续性评估的观点表明，天然凝结剂的接受和商业化受到两个主要挑战的阻碍：实际应用的实用性和可行性，以及从技术，环境，经济和社会方面考虑使用天然凝结剂的可持续性。围绕这些问题的未来研究可能有助于澄清自然混凝剂所笼罩的不确定性，同时也将水产业转变为更具可持续性的产业。可持续性评估的观点表明，天然凝结剂的接受和商业化受到两个主要挑战的阻碍：实际应用的实用性和可行性，以及从技术，环境，经济和社会方面考虑使用天然凝结剂的可持续性。围绕这些问题的未来研究可能有助于澄清自然混凝剂所笼罩的不确定性，同时也将水产业转变为更具可持续性的产业。