ArticleFrontiers in chemistry2026
Operational challenges of industrial wastewater treatment plants in a multi-river province of China: implications for problem identification and management.
Article in Frontiers in chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Industrial wastewater treatment plants are the primary sources of pollution in receiving water bodies, and their operational status directly affects the river water quality security, especially in provinces with multiple rivers. However, most reports focus on individual case studies and fail to conduct systematic research across basin and regional scales to support water environment risk assessment and control for decision-making and administrators. Methods: Given this, this study aimed to sort out the operational problems of industrial WWTPs and corresponding countermeasures at both basin and provincial scales, based on a 3-year investigation conducted in Gansu Province. Results: A comprehensive profile of operational problems, involving three common and 15 specific aspects, was developed at both basin and provincial scales. At the provincial scale, operational problems of WWTPs mainly included high dependence treatment rate (50.0%), low-load operation in terms of influent quantity (47.4%) and quality (e.g., chemical oxygen demand: 41.7%), a high proportion of WWTPs with a compliance rate below 90% (34.4%), high unit sludge yield (2.02 t/10 Discussion: Collectively, these measures can facilitate a shift from an effluent compliance-oriented approach to comprehensive process-based optimization and management. This study also provides a useful framework for investigating industrial WWTPs and identifying and addressing operational challenges.
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