Breaking the Viscosity Trap: Polymer-Flood Produced Water Treated by CDOF and CDFU

2026-11-09

Polymer flooding multiplies oil recovery but leaves produced water loaded with HPAM, raising viscosity and stabilizing emulsions that defeat conventional trains. This article examines why inclined-plate settling plus filtration struggles with high-polymer

Why CDOF Pushes Ozone Oxidation Past the Limits of Conventional Dosing

2026-11-09

Conventional ozone dosing struggles with refractory COD: long 1-2 hour contact windows, poor gas dissolution and removal rates stuck at 70%-80%. The CDOF unit from SINOKLE merges cyclonic flotation with catalytic ozone oxidation, converting ozone into hyd

Activated Carbon in Water Treatment: Reading the Grade Before the Price Tag

2026-11-06

Activated carbon is bought on iodine number and price, then judged on how fast it breaks through. This article covers the 1794 sugar refinery origin, the Langmuir adsorption basis, how the national standard sorts grades by raw material and shape, and why

Circulating Cooling Water: Where the Blowdown Numbers Actually Come From

2026-11-06

Circulating cooling water can absorb 50-90% of a plant's total intake, and most of what leaves does so as blowdown set by the cycles of concentration. This article traces the three cooling mechanisms, the water quality limits, and the arithmetic behind 33

OZCO Catalyst Design: Six Levers That Decide How Much Ozone You Actually Use

2026-11-06

Hydroxyl radical chemistry at 2.8 V against ozone at 2.07 V is the whole argument for catalytic ozonation, but the reactor only delivers it if the catalyst is designed for it. This article covers active site density, leaching, mass transfer, six design ch

Why Delayed Coking Sour Water Reads High COD: Two Contributors, Two Different Fixes

2026-11-06

A stripper outlet can look clear and still measure thousands of milligrams per litre of COD. This article separates the two dominant contributors in delayed coking sour water, the anionic surfactant system that keeps oil emulsified and the sulfide load th

Coal Chemical Discharge Water: Why Biological Treatment Stalls at the Last Mile

2026-11-06

Water that leaves a coal chemical site has already been treated once, and that is exactly why it is hard to finish. This article profiles the phenol, cyanide and refractory organic load, explains why biology caps out, and sets out how the CDOF ozone advan

Oily Wastewater at Heavy Oil Power Plants: A Two-Stage Physical Route Worth Costing

2026-11-06

Oil depot drainage, floor washing water and pump house leaks arrive at a heavy oil power station with 50-500 mg/L of oil and a high emulsified fraction. This article sets out the CDFU plus KFM two-stage physical train, the effluent numbers each stage hold

Coalescing Pressure De-oiler: Why Shallow Pools Beat Bigger Vessels

2026-11-06

A coalescing pressure de-oiler separates oil in two moves: grow the droplets, then shorten the rise path. This article works through Stokes law, shallow-pool theory, corrugated plate packs and CFD-optimised zoning, then reads the Xinjiang case where an in

Choosing an Ozone Catalyst: Four Tests That Separate Real Specs from Brochure Claims

2026-11-06

Ozone catalysts are usually sold on surface area figures, yet activity, stability and poisoning resistance decide whether a bed survives two years of real effluent. This guide sets out the four indicators worth testing, the two selection paths that demand