Wet scrubbing intensification applied to hydrogen sulphide removal in waste water treatment plant

Wet Scrubbing Intensification Applied to Hydrogen Sulphide Removal in Waste Water Treatment Plant

Hydrogen sulphide exposure in waste water treatment

Background The aims of this study was to assess exposure to hydrogen sulphide (H2S) among waste water treatment workers (WWWs), and achieve a better measure of the risks of H2S exposure than only using the eight-hour average value and the ceiling value because the exposure pattern of H2S for WWWs is dominated by short-term peaks. Methods Ninety-three measurements of H2S from 56 WWWs in three ...

Waste water ammonia stripping intensification using microfluidic system

This paper reports the results of experimentally removing ammonia from synthetically prepared ammonia solution using a micro scale mixing loop air stripper. Effects of various operational parameters (such as: pH, air flow rate, wastewater flow rate and initial ammonia concentration) were evaluated. By increasing the pH from 10 to 12.25 the amount of KLa increased from 0.26 to 0.73 hr-1. A consi...

Dynamic Multiobjective Global Optimization of a Waste Water Treatment Plant for Nitrogen Removal

This paper deals with the dynamic optimization of a wastewater treatment plant model for nitrogen removal. Two process variables (i.e., aeration factor in a tank and internal recycle flow rate) are selected as control variables and their time profiles are approximated using the control vector parameterization (CVP) technique. Two conflicting objectives have been considered to formulate a multio...

Hydrogen Sulphide Removal Using a Novel Biofilter Media

Air emissions from waste treatment plants often consist of a combination of Volatile Organic Compounds (VOCs) and odors. Hydrogen sulfide is one of the major odorous gases present in the waste emissions coming from municipal wastewater treatment facilities. Hydrogen sulfide (H2S) is odorous, highly toxic and flammable. Exposure to lower concentrations can result in eye irritation, a sore throat...