A laboratory-scale drum bioreactor system was used to study engineering aspects of soil bioremediation. Polycyclic aromatic hydrocarbons (PAHs) were chosen as contaminants in soil. In the operation of the reactor, different mixing strategies were applied according to the size of soil without separate washing of sand. The effect of the water content of the soil mixture on solid mixing time and p...

The bioavailability and mobility of copper (Cu) in soil play a crucial role its toxicity impact on organisms. Humic substances, with their abundant functional groups unique pore structure, have demonstrated the ability to effectively mitigate toxic effects heavy metals soil. This study explores potential soluble humic substance (HS) derived from leonardite for Cu removal contaminated soils. var...

Identifying determinants of soil transmitted helminth infection is vital to design control strategy for the disease. This study assessed the prevalence of STH infections and associated factors among schoolchildren in Durbete town, northwestern Ethiopia. Data about the sociodemographic and socioeconomic status of the children were collected using a questionnaire and stool samples were diagnosed ...

Separation of low-density sediment detritus in CsCl solution is a promising technique for benthic studies. The known toxicity of CsCl suggests the possibility of toxicity in the separated sediment. Fluoranthene biodegradation by Mycobacterium strain PC01 was used to probe microbial activity in sediment following density separation. Complete inhibition of biodegradation occurred in sediment prev...

This review is focused on the removal of chlorinated hydrocarbons (as representative persistent pollutants) from soil by soil-washing techniques, paying special attention to application electrochemically assisted technologies for treatment liquids and gases produced during this treatment. It considers degree maturity suggests challenges future research. Electrochemical can help improve overall ...

Background Soil-transmitted helminths (STH) infections remain an important public health problem in the tropics. This study aimed to evaluate the soil contamination rate and prevalence of infestations of geohelminth among residents in Bazou. Methods Four hundred (400) soil samples and 182 stool specimens were collected respectively from four sites and from inhabitants aged 1 to 40 years and a...

Handwashing is universally promoted in health interventions. Studies in Bangladesh and elsewhere have shown a 14 - 40% reduction of diarrhoeal diseases with handwashing. The perceptions and methods related to washing of hands vary widely in Bangladesh. Socio-economic factors are also associated with methods practised. In general, the effectiveness of handwashing practices is poor. Faecal colifo...

Understanding the dynamic behavior of polymeric fluids in porous media is essential for vast geoscience applications, particularly enhanced oil recovery and polymer-enhanced soil washing to clean up contamination. During...