The exponential growth of different manufacturing units has marked the overall expansion of industrial sector globally, but they also bring in some additional problems like obnoxious odour emitted in the environment. Industrial plants and sewage systems located near residential places can be a subject of legal and political obligations if they are accountable in discharging unpleasant odours. The odour nuisance generated from wastewater instigates from a variety of reasons. The sewer maintenance holes and wastewater treatment facilities are mainly responsible it.
The wastewater treatment process is employed to treat the wastewater that can be later discharged to the natural water cycle with negligible environmental issues or properly suitable to be reused. The main purpose of wastewater treatment process is to allow industrial or domestic effluents to be discharged without harming the health of the surrounding people or making deplorable damage to the environment. Hence, nowadays the implantation of odour control systems has shifted from a mere afterthought to a major design consideration in most of the manufacturing plants.
What causes obnoxious smell in wastewater treatment plant?
If rotten eggs like odours are discharged from your wastewater treatment plants then more likely it causes from Hydrogen sulphide. The condition emerges when the volume of oxygen transfer into the wastewater present in the primary treatment facilities or collection system goes down and the microbes present there leave with no dissolved oxygen for respiration. In this anaerobic condition, microbes like sulphate-reducing bacteria utilize the sulphate ion that present in a profuse amount in water as a source of oxygen necessary for respiration. H2S that is derived from this activity is low soluble in water and discharge repugnant smell. As mentioned earlier it doesn’t dissolve in the wastewater and eventually spreads out to the atmosphere in areas like grit chambers, wet walls. Besides these, it also weakens the structural integrity of the system as it is highly corrosive in nature. What’s even more damaging that, H2S promptly numbs the sense of smell making the workers unaware of its existence. There can be various other odorous compounds like amines and mercaptans as well; however, H2S is the predominant cause.
Cost-effective ways to address the issue
Keeping these issues in mind biofiltration process was introduced to control the impact of the pollutants, capture and biologically degrade them. Any sort of filtration process encompassed with biomass as a filter media can be called biofilter. Biofilters are the nature-friendly solution that also encompasses benefits like lower operating cost. These are designed following the principle of diminishing the number of sewage elements by restraining the flow of wastes, eventually making the surrounding environment cleaner.
What causes obnoxious smell in wastewater treatment plant?
If rotten eggs like odours are discharged from your wastewater treatment plants then more likely it causes from Hydrogen sulphide. The condition emerges when the volume of oxygen transfer into the wastewater present in the primary treatment facilities or collection system goes down and the microbes present there leave with no dissolved oxygen for respiration. In this anaerobic condition, microbes like sulphate-reducing bacteria utilize the sulphate ion that present in a profuse amount in water as a source of oxygen necessary for respiration. H2S that is derived from this activity is low soluble in water and discharge repugnant smell. As mentioned earlier it doesn’t dissolve in the wastewater and eventually spreads out to the atmosphere in areas like grit chambers, wet walls. Besides these, it also weakens the structural integrity of the system as it is highly corrosive in nature. What’s even more damaging that, H2S promptly numbs the sense of smell making the workers unaware of its existence. There can be various other odorous compounds like amines and mercaptans as well; however, H2S is the predominant cause.
Cost-effective ways to address the issue
Keeping these issues in mind biofiltration process was introduced to control the impact of the pollutants, capture and biologically degrade them. Any sort of filtration process encompassed with biomass as a filter media can be called biofilter. Biofilters are the nature-friendly solution that also encompasses benefits like lower operating cost. These are designed following the principle of diminishing the number of sewage elements by restraining the flow of wastes, eventually making the surrounding environment cleaner.