Industry News

This article details the planning and implementation of a non-shutdown retrofit for the aging aeration system at a wasteWater Treatment plant in Shanghai's Songjiang District. Faced with issues like pipeline corrosion and uneven aeration, the project employed strategies including flow-based construction scheduling and a “three-operational, one-under-retrofit” zonal approach. Key retrofits involved adding a ring main header and replacing laterals and fine-bubble diffusers, resulting in significantly improved effluent quality (e.g., NH₃-N ~0.16 mg/L) and sludge conditions without halting plant operations.

Learn MBBR biofilter design requirements, oxygen demand calculation, TAN removal & reactor sizing for high-density RAS. Practical 500-ton aquaculture case included.

Explore advanced strategies for the rapid start-up of Mbbr Systems. Learn how pre-adapted carriers, salinity control, and parameter optimization can cut MBBR wastewater treatment start-up time by over 20%. Discover efficient MBBR technology for your plant.

Explore sludge treatment equipment for wastewater: thickeners, ceramic filters, dryers, anaerobic digesters & incinerators. Learn dewatering methods, industrial applications, and trends in smart sludge management & resource recovery.

Explore the application of inverted A2O process in a 50,000 m³/d underground WWTP in Jinan. Achieves 96% COD, 99% NH3-N, 81% TN & 98% TP removal, meeting GB 18918-2002 Class 1A standards. Includes design parameters & operational results.

Discover how MBBR (Moving Bed Biofilm Reactor) technology achieves Simultaneous Nitrification and Denitrification (SND) for efficient nitrogen removal. This guide explains the macro/microenvironment & biological mechanisms, key influencing factors (DO, C/N, pH, temperature), and the role of biofilm carriers in creating aerobic/anoxic zones for SND.

Comprehensive guide to inclined plate & tube settlers (lamella clarifiers) in wastewater treatment. Learn how shallow sedimentation works, design parameters (spacing, angle, loading rates), applications (primary settling, oil separation), and why they are rarely used for secondary clarification. Includes installation, maintenance, and key operational requirements.

A detailed case study on treating high-strength starch & adhesive wastewater (30 m³/d, COD 10,000 mg/L) in China's Taihu Lake Basin. The Anaerobic + A/O (Anoxic/Oxic) + Activated Carbon adsorption process achieves strict Grade I standards (COD ≤100 mg/L). Explore the process flow, design parameters, costs (¥324,250 investment, ¥5.01/m³ operating cost), and compliance with Guo Han [1998] No. 2 regulations.

Explore a detailed case study of a pig slaughterhouse wastewater treatment plant in Zhejiang. This project successfully treats 160 m³/d of high-strength organic wastewater (high COD, BOD, oils, SS) using a proven anaerobic digestion + two-stage contact oxidation process. Learn about the design parameters.