Preliminary insights about the treatment of contaminated marine sediments by means of bioslurry reactor: Process evaluation and microbiological characterization

Research progress of bio-slurry remediation technology for organic contaminated soil

“…46 Bioremediation mainly includes bioventing, 47 biostimulation, 48 bioaugmentation, 49 composting, 50 bio-piling, 51 bio-slurry remediation. 15 2.3.1 Bioventing. Microorganisms need oxygen to grow, and some clay or ne sand soils oen have insufficient oxygen; bioventing is the injection of air or pure oxygen into the unsaturated zone of the soil to stimulate microorganisms to degrade organic pollutants.…”

“…63 Until today, the bio-slurry remediation technology has been proven to be an effective tool for the remediation of various types of organic pollutant-contaminated soils. 15,65,[75][76][77] 3 Overview of bio-slurry remediation technology…”

“… 46 Bioremediation mainly includes bioventing, 47 biostimulation, 48 bioaugmentation, 49 composting, 50 bio-piling, 51 bio-slurry remediation. 15 …”

“…The process equipment usually consists of four parts: contaminated soil pretreatment and conditioning unit, bio-slurry treatment unit, power supply system, and additional equipment. 15 Additional equipment includes mud sedimentation, sewage treatment equipment, and exhaust gas treatment equipment. 63 Bio-slurry remediation equipment can be divided into three operating modes: batch, semi-continuous and continuous, among which the batch is the mainstream.…”

“…Still, the limitations of this technology are that the availability of microorganisms is low, and the remediation process is difficult to intervene. 15 One way to address this problem is to combine slurry remediation technology with microbial fermentation technology. The rational use of fermentation technology can provide a suitable growth environment for microorganisms, such as enhancing solid–liquid mass transfer to improve the utilization rate of microorganisms and adding water to reduce the initial.…”