Hebei Wastewater Treatment Plant, Langfang, Hebei Province, China

The Hebei wastewater treatment plant is located in Gu'an County, Langfang City, Hebei Province, China. It serves a population of approximately 59,000 people, classifying it as a medium-sized municipal facility within the region's wastewater infrastructure. As a Chinese wastewater treatment plant, it operates under the national Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002), which sets effluent limits for conventional pollutants and nutrients. For plants serving populations around 59,000, secondary treatment with nutrient removal is typically required to meet Class 1-A or 1-B standards, depending on the receiving water body's sensitivity. The plant's treated effluent likely discharges into local waterways that drain into the Hai River system, which flows into the Bohai Sea. The Hai River basin is a densely populated and industrialized region, making effective wastewater treatment critical for protecting downstream aquatic ecosystems and coastal water quality in the Bohai Sea.

The plant is located in the Hai River basin, which drains into the Bohai Sea via the Hai River and its tributaries. The Bohai Sea is a semi-enclosed marginal sea that supports fisheries and marine biodiversity but faces eutrophication pressures from nutrient loading. Effective treatment at this plant helps reduce pollutant loads to the river system and ultimately the sea, supporting regional water quality goals.