Municipal Tail-Water Polishing Without Extra Chemical Dosing: What a Dedicated Ozone Catalyst Changes

2026-09-14

Municipal secondary effluent is low in COD but full of humic substances, trace pharmaceuticals and odourants. A dedicated heterogeneous ozone catalyst targets that fraction, and this piece compares three plants where it replaced or preceded BAC and membra

High-COD Fine-Chemical Wastewater: Where KLEX-013 Sits Between Pre-Treatment and Biological Polishing

2026-09-14

Fine-chemical effluent with thousands of mg/L COD, heterocyclic toxins and swinging salinity breaks ordinary catalytic ozone. This review of KLEX-013 covers the carrier design, the specification limits that matter, and three plants running it continuously

Anthracite Over Garnet: Why Dual-Media Filters Outlast Single-Layer Beds on Oily Water

2026-09-11

Single-layer filters on oily water clog at the surface and backwash poorly. This article looks at how an anthracite-and-garnet graded bed with combined air-water backwash changes filtration cycles and effluent stability.

When Ozone Alone Stops Working: A Heterogeneous Catalyst Route for Refractory COD

2026-09-11

Refractory industrial wastewater resists conventional ozone oxidation because ozone utilisation is poor. This article sets out how a heterogeneous catalyst raises hydroxyl-radical yield and what the product series covers.

Chemical Wastewater: Picking Between Physical, Chemical, Physicochemical and Biological Routes

2026-09-11

Chemical wastewater is rarely treatable by a single unit. This overview sets out the four families of treatment method by action principle and shows which pollutant classes each one actually removes.

Refinery Overhead Sour Water: Breaking a Surfactant-Locked Emulsion in Minutes

2026-09-11

Crude slates are getting heavier and atmospheric/vacuum overhead sour water is increasingly emulsified. This article explains the interfacial chemistry behind that emulsion and how a SiC filter plus KHC coalescing remover answers it.

Offshore Skid Oily Water Units: Designed for Shock Loads, Not for the Design Point

2026-09-11

Offshore floating facilities produce emulsified cut-water under constant motion and feed swings. This article explains why stability across a wide load band, not rated-condition data, is the real acceptance criterion for a treatment skid.

The Offshore Water Treatment Bill Nobody Quotes: Chemicals, Sludge and Unplanned Stops

2026-09-11

Offshore water treatment projects are often bought on purchase price and paid for later through chemical supply, hazardous-waste disposal and unplanned downtime. This article breaks down where those hidden costs come from.

Offshore Cut-Water: Treating Sea Discharge as an Operating Risk, Not a Test Result

2026-09-11

Offshore crude pretreatment produces a highly emulsified cut-water stream that must meet sea-discharge limits every hour of the year. This article examines why shock tolerance and low O&M matter more than rated-condition performance.

Oil Depot Oily Wastewater: Matching Every Oil Form to the Right Separation Step

2026-09-11

Oil-depot wastewater carries floating, dispersed and emulsified oil in shifting proportions. This breakdown follows the graded physical train from bar screen and inclined-plate separator through coalescing and flotation to final filtration.