Views: 0 Author: Site Editor Publish Time: 2025-07-23 Origin: Site
Hebei Huayu Environmental Engineering Co., Ltd offers comprehensive sewage treatment equipment plants designed to treat domestic and light‑industrial wastewater to meet stringent discharge or reuse standards. These turnkey solutions integrate screening, primary settling, biological treatment, and disinfection into a cohesive process tailored to flow rates from 50 to 5,000 m³/day.
Preliminary and Primary Treatment
Wastewater first passes through coarse and fine screens that remove rags, plastics, and grit. A grit chamber or vortex separator eliminates sand and heavy solids, protecting pumps and downstream processes. Clarifiers—either circular or inclined‑plate (“lamella”) designs—then settle suspended solids and organic flocs, reducing biochemical oxygen demand (BOD) by up to 40 %.
Biological Treatment Options
Depending on site requirements, Hebei Huayu deploys one of several biological processes:
Sequencing Batch Reactors (SBRs) operate in timed phases—fill, aerate, settle, decant—to achieve nutrient removal flexibility.
Moving‑Bed Biofilm Reactors (MBBRs) use floating carriers to support biofilm growth, providing high biomass concentration in a compact footprint.
Conventional Activated‑Sludge Systems employ continuous aeration tanks and secondary clarifiers for stable organic removal.
Fine‑bubble diffusers maintain dissolved‑oxygen levels between 2–4 mg/L, ensuring efficient microbial metabolism. PLC‑based controls automate air‑scour, sludge‑wasting, and cycle timing, reducing manual intervention and maintaining consistent effluent quality.
Tertiary Polishing and Disinfection
For projects requiring higher-quality effluent, tertiary treatment stages—such as sand or multimedia filtration and activated‑carbon adsorption—remove residual suspended solids and trace organics. Final disinfection can be achieved via ultraviolet reactors or chlorination systems, ensuring pathogen inactivation before discharge to receiving waters or irrigation reuse.
Service and Support
Hebei Huayu provides end‑to‑end services: site investigation, process design, equipment fabrication, civil‑works coordination, installation, and commissioning. Operator training covers routine operation, safety protocols, and maintenance of mechanical and electrical components. Preventive‑maintenance plans include periodic blower inspections, membrane diffuser cleanings, and instrumentation calibration to sustain reliable performance and regulatory compliance.
