Knowledge

Engineering case study of flocculent sludge buildup on inclined tube settlers: seven root causes, targeted retrofits (buffer rectification plates, par

Case study of a greenhouse recirculating aquaculture system (RAS) in Minqin County, Gansu (110 mm annual rainfall) where MBBR biofiltration raised rai

A 240-day commercial-scale trial by the Chongqing Academy of Agricultural Sciences used high-performance MBBR biofiltration with 1,200 m²/m³ carriers

A recirculating aquaculture system (RAS) combining MBBR biofilm reactors, an 80-100 mesh microscreen drum filter and microporous aeration achieved 1,0

A pilot-scale study on carbon-to-nitrogen ratio in secondary biological wastewater treatment shows low C/N (below 4:1) limits denitrification to 60–75

Practical maintenance guide for Juntai EPDM disc diffusers (DD215, DD270, DD350): five rules that prevent membrane fouling, a monitoring schedule that

A coal washing wastewater plant in Central Asia used PP hexagonal tube settlers to cut effluent SS from 150-250 mg/L to below 40 mg/L (over 90% remova

Conventional secondary wastewater treatment removes only a small fraction of per- and polyfluoroalkyl substances (PFAS), leaving forever chemicals in

A complete case study of a 1,200 m³/d food processing wastewater treatment plant using MBBR technology, achieving stable performance, high COD removal

A comprehensive design guide for tube settler sedimentation tanks covering inlet water distribution systems, sludge discharge mechanisms, and a worked

How MBBR media retrofits solved wastewater treatment challenges at a Jakarta municipal WWTP (15,000 m³/d) and a Surabaya palm oil mill (1,200 m³/d). C

A controlled study evaluating MBR system stability under variable organic shock loading conditions. COD removal recovered within 24–48 hours, but memb