Gas flotation for oily wastewater treatment is based on the attachment of gas bubbles to oil droplets produce lighter aggregates that rise surface. It a feasible, promising, and effective method due its high separation efficiency with no secondary contamination, cost-effectiveness, simple operation. This review focuses separating from emulsions by using microbubbles (MBs) nanobubbles (NBs), whi...

A biotechnological method for metalworking fluids (MWF) wastewater treatment was developed. The research, conducted in a lab-scale bioreactor, proved that the process of eliminating pollutants from MWF wastewater proceeds effectively when the following are applied: multiple reinoculating of biomass by adding active microorganisms into the bioreactor, immobilizing microorganisms on the PVC foam ...

Wastewater treatment of machine-building enterprises contaminated with oils, petroleum products and mechanical impurities is an urgent task. A promising direction in the field such wastewater use pressure hydrocyclones hydrocyclone installations. The article presents results research on oil-containing hydrocyclones, conducted experimental installation, which includes under test, a sedative tank...

UV irradiation and advanced oxidation processes have been recently regarded as promising solutions in removing polycyclic aromatic hydrocarbons (PAHs) from marine oily wastewater. However, such treatment methods are generally not sufficiently understood in terms of reaction mechanisms, process simulation and process control. These deficiencies can drastically hinder their application in shippin...

The performance of an aerobic membrane-coupled bioreactor (MBR) operating at mesophilicthermophilic transitional temperatures (40 ̊C) treating oily rendering wastewater has been evaluated in terms of COD, BOD5, oil and grease, solids and ammonia removal at 5 and 10-day HRT. The COD removal efficiency increased from 78% to 96%, BOD5 removal from 87 to 99% and oil and grease removal from 92 to 95%...