Environmental Impacts Of Car Wash Wastewater In Urban Areas
- Authors
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F. Murtazaev
Samarkand State Architecture and Construction University named after Mirzo Ulugbek. -
A. Boymuratov
Samarkand State Architecture and Construction University named after Mirzo Ulugbek.
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- Keywords:
- car wash wastewater, urban environmental pollution, water reuse, integrated treatment systems, sustainable water management
- Abstract
- Car wash facilities represent an increasingly significant source of water consumption and environmental pollution in urban areas. This study evaluates the environmental impacts of car wash wastewater (CWW) through a systematic review of published literature, with a focus on its composition, current management practices, and associated risks. CWW is characterized by a complex mixture of contaminants, including oil and grease, surfactants, suspended solids, organic matter, and heavy metals. Reported concentrations of key parameters such as chemical oxygen demand (COD), turbidity, and petroleum hydrocarbons indicate that CWW is a high-strength effluent requiring effective treatment. The review reveals that many facilities rely on conventional mechanical pre-treatment methods, which are insufficient for removing dissolved and emulsified pollutants. As a result, inadequately treated wastewater contributes to diffuse environmental pollution and long-term degradation of urban ecosystems. International studies demonstrate that integrated treatment systems significantly improve removal efficiency and enable water reuse. The findings suggest that the environmental impact of CWW is more strongly influenced by wastewater management practices than by generation volumes alone. The implementation of multi-stage treatment systems and water recycling strategies can reduce freshwater consumption by up to 70-90% and mitigate associated pollution risks. This study provides a comprehensive assessment of CWW impacts in urban areas and emphasizes the need for improved treatment technologies, regulatory measures, and sustainable water management approaches in the car wash sector.
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- Published
- 2026-07-30