Refining Wastewater in 2026: Where Conventional Trains Fail and What CDFU plus CDOF Changes

2026-10-26

Tighter 2026 discharge limits are meeting a wastewater that is highly emulsified, chemically complex and hydraulically unstable. This review sets out why flotation, chemical demulsification, biological treatment and membranes each stall on refining efflue

Produced Water at High Water Cut: Sizing a CDFU Train for ASP Flooding at 180 m³/h

2026-10-26

Produced water from polymer and ASP flooding is harder to clean than the water a field handled twenty years ago: finer droplets, higher viscosity and chemicals that keep the emulsion intact. The article follows a Daqing produced water project designed aro

Coal-Washing Wastewater in Power Plants: What a Two-Stage CDFU Dissolved-Air Flotation Train Delivers

2026-10-23

Washing, screening and dewatering in coal-fired power plants yield coal-washing wastewater loaded with coal dust, phenols, oil and heavy metals. Conventional sedimentation, filtration, coagulation and air flotation struggle with fluctuating loads and oily

Polyphosphate-Accumulating Organisms Explained: The Microbial Engine Behind Biological Phosphorus Removal

2026-10-23

Biological phosphorus removal rests on a peculiar microbial habit: polyphosphate-accumulating organisms release phosphate under anaerobic conditions and over-accumulate it under aerobic ones. This article explains who the PAOs are, how the Comeau acetate

One Unit, Two Wins: How the HAC Cyclonic Oil-Water Separator Handles Compliant Discharge and Oil Recovery

2026-10-23

Oilfield produced fluid treatment usually forces a trade-off between clean discharge water and recoverable oil. The SINOKLE HAC cyclonic oil-water separator refuses that trade-off: a CFD-optimized axial vortex field drives separation at hundreds to thousa

Landfill Leachate Without Membranes: How CDOF Catalytic Ozone Oxidation Cuts Concentrate, Sludge and Cost

2026-10-23

Landfill leachate output in China climbed from 49.546 million tonnes in 2011 to nearly 80 million tonnes in 2024, while aging sites push the BOD5/COD ratio below 0.1. Membranes generate 15%-30% concentrate and Fenton yields iron sludge. The article review

Nuclear Power Plant Non-Radioactive Oily Wastewater: A KHC Plus CDOF Train Built for Oil Below 1 mg/L

2026-10-23

A newly built nuclear power plant must bring non-radioactive oily production wastewater, with oil between 500 and 2000 mg/L and suspended solids near 100 mg/L, down to oil ≤1 mg/L and solids ≤10 mg/L. This article follows the full train from equalization

Ternary NCM Precursor Solution Purification: Cutting Oil and TOC Without Activated Carbon or Resin

2026-10-23

Ternary NCM precursor solution demands oil and total organic carbon control without disturbing its ionic balance. Coconut-shell activated carbon and special resins do the job but bring heavy cost, two-day replacement cycles, ethanol regeneration risks and

Secondary Effluent Upgrading With CDFU Pretreatment and CDOF Ozone Catalytic Oxidation: A Compact Route

2026-10-23

Activated sludge, biofilm processes and coagulation-sedimentation each carry operational penalties when secondary effluent must be upgraded further. This article breaks down the SINOKLE advanced treatment route that pairs CDFU cyclonic dissolved gas flota

Cassava Ethanol Stillage After Biochemical Treatment: Can CDOF Ozone Catalytic Oxidation Close the COD Gap?

2026-10-23

Stillage from cassava-based ethanol plants carries insoluble fibers, soluble polysaccharide COD, ash and silt that survive conventional biochemical treatment. This piece reviews feedstock structures in the ethanol industry, explains why residual COD persi