DOI: 10.11799/ce202601006
Optimization of oil-turbidity co-treatment and resource recovery process for coal-bearing wastewater
BAO Yu
LI Yilong
CAI Zhengang
Abstract：Traditional coal wastewater treatment processes often suffer from low solid-liquid separation efficiency,high dependence on chemical agents,and insufficient reclaimed water reuse rates.To address these challenges,this study focuses on a typical coal preparation plant in an alpine mining area of Inner Mongolia.An innovative silicon carbide ceramic membrane separation system was developed,employing surface modification and dynamic filtration to enhance the synergistic adsorption-sieving mechanism at the ceramic membrane interface.Key parameters and the process flow were optimized and integrated with online air-water pulse backwashing technology to achieve efficient short-process resource recovery from wastewater.Engineering practice demonstrated that,even under significant fluctuations in influent COD,turbidity,and oil content,the system consistently achieved removal rates exceeding 97.5%for major pollutants(SS,petroleum substances,and COD),increased the reclaimed water reuse rate to 97.6%,and reduced operational cost per ton of water by 61.8%.Tailored to the characteristics of alpine mining area wastewater,this research proposes a highly efficient short-process treatment technology based on ceramic membranes,offering a new technical pathway for wastewater resource recovery and industrial near-zero discharge.
Keywords：coal-bearing wastewaterceramic membranehigh-turbidity oily wastewaterreclaimed water reusenear-zero discharge
Publication Date：2026-01-20
Online Publishing Date：2026-03-10(First online date of this platform, not the publication date of the document)
Pages：6( 43-48 )