近年来随着经济快速发展,化工行业产生大量高浓度有机废水,此类废水中有机污染物浓度高、污染物种类多、性质差异大、毒性大,存在巨大的环境风险。本文对Web of Science(WOS)核心合集数据库和中国知网(CNKI)核心论文数据库中的相关文献进行可视化处理,综述了国内外高浓度有机废水研究现状。该领域近十年来我国研究热点集中于高浓度有机废水的"零排放"、资源化利用、膜处理、生化-物化技术方面的研究。并结合现有问题从组合工艺高效处理废水与低成本资源化方向提出可行性建议,包括:1)针对性组合工艺发展,因地制宜实现高浓度有机废水高效、绿色、低价处理;2)开发新型水处理技术,实现低成本、低碳化、高效率工艺升级;3)提升资源化效率,实现水、盐、贵金属和高值有机物甚至是过程中产生热能的回收利用,提升低值废盐等的高值利用;4)模块化和智能化,结合人工智能等实现处理单元模块化、智能化等,升级环保产业新质生产力。
A Bibliometric Analysis of the Development Status and Trend of"Zero Emission"of High Concentration Organic Wastewater
In recent years,rapid economic development has led to the generation of large volumes of high-concentration organic wastewater in the chemical industry.This wastewater typically contains high levels of organic pollutants,including a wide range of contaminants with varying characteristics and significant toxicity,posing substantial environmental risks.This paper visualizes relevant literature from the Web of Science(WOS)Core Collection and the CNKI Core Paper Database,providing a review of the current research on high-concentration organic wastewater.over the past decade,research has focused on"zero emission,"resource recovery,membrane treatment,and both biochemical and physicochemical technologies for managing high-concentration organic wastewater.Addressing existing challenges,the paper offers several practical recommendations for improving wastewater treatment efficiency and promoting low-cost resource recovery:1)developing targeted combined processes tailored to local conditions for efficient,green,and cost-effective treatment of high-concentration organic wastewater;2)advancing new water treatment technologies to achieve low-cost,low-carbon,and high-efficiency process upgrades;3)enhancing resource utilization efficiency to enable the recycling and recovery of water,salts,precious metals,high-value organic compounds,and even heat generated during treatment,while improving the high-value use of low-value waste salts;and(4)integrating modularity and intelligence,leveraging artificial intelligence to create modular treatment units and enhance the intelligent capabilities of environmental protection technologies.
high concentration organic wastewaterzero emissionsmembrane treatmentrecycling