Three Field Cases: How CDFU Plus CDOF Performs on Real Oily Wastewater

2026-10-15

Rather than describing a process in the abstract, this article reports three projects where a CDFU plus CDOF pure-physical train was installed and measured: refining and chemical produced water at 1,000 m3/d, a thermal power plant at 500 m3/d, and ship bi

Reinjection Water Quality: Why Emulsified Oil Between 1 and 50 Microns Decides It

2026-10-15

As oilfields move into the mid-to-late stage of development, reinjection water quality directly governs waterflood performance and production economics. This article explains why produced water with emulsified droplets between 1 and 50 microns defeats con

Coking Wastewater by the Numbers: What 3,800 mg/L COD Does to Process Choice

2026-10-15

Coking wastewater combines extremely high organic load with phenols, ammonia nitrogen, cyanide and finely emulsified oil, which is why biological treatment alone struggles. This article sets out the load figures first, explains why conventional physicoche

Ship Bilge Water in Three Stages: CDFU, KFM and CDOF Against Grade 3 Limits

2026-10-15

Engine room bilge water and tank washing water are highly emulsified and leave little room for error, which is why compliant discharge is a persistent problem for ship operators. This article walks through a three-stage process combining CDFU pre-treatmen

Tank Farm Wastewater: Why Coalescing Plus CDFU Replaces Chemical Demulsification

2026-10-15

Oil tank farms generate a wastewater stream whose oil content swings from a few hundred mg/L to tens of thousands, and chemical demulsification has trouble keeping up. This article explains where the water comes from, the four characteristics that drive t

Three Units, One Train: Getting Oil Out of Every Power Plant Wastewater Stream

2026-10-15

A thermal power plant generates oily wastewater from boiler cleaning, desulfurisation and turbine maintenance, and the oil content across those streams can differ by four orders of magnitude. This article explains why settling ponds and plain flotation un

Free Oil in PLA Wastewater Is Recoverable Product, Not Just a Disposal Problem

2026-10-15

Polylactic acid production sends a steady trickle of un-emulsified free oil into its wastewater, and treating it as waste is an expensive habit. This article traces where that oil enters the stream, from vacuum pump working fluid to heat transfer oil leak

Pharmaceutical Wastewater in Two Moves: CDFU First, CDOF for What Survives

2026-10-15

Pharmaceutical wastewater combines suspended solids, refractory organics and strong toxicity, and batch production makes both quality and volume swing hard. This piece sets out a two-stage design in which CDFU strips the load up front so the catalyst down

Atomic Layer Deposition on Filter Media: What a Superhydrophilic Surface Changes

2026-10-15

Refractory organics, high salinity and heavy organic loads expose the ceiling of ordinary treatment media. This article explains how atomic layer deposition builds a superhydrophilic film with atomic-level thickness control, high density and large-area un

Reading Oil Content in Acidic Emulsified Water: Where the Standard Method Slips

2026-10-15

Acidic, heavily emulsified wastewater breaks the default infrared method for oil content: extraction collapses, a stubborn emulsion layer forms, and parallel samples drift apart. This piece walks through the four bottlenecks labs actually hit, then lays o