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Practitioner's Tool / Costs for Sanitation Options - Markets

29 bytes added, 20:06, 22 November 2016

→‎3. Effluent reuse and recycling

There are three categories of disinfection that are suitable for market wastewater flows:

*''[[Chlorination_(Chemical_Disinfection)Practitioner's Tool / Chemical Disinfection|Chemical]]:'' Chlorine is a common chemical disinfectant for wastewater effluent. Erosion style chlorinators use the chlorine in solid form as chlorine blocks or tablets. Similar to swimming pool chlorinators, the wastewater effluent flows over the solid chlorine tablets and dissolves or erodes the chlorine, delivering the chemical to the effluent. This is an effective method for small flows. Also popular are liquid chlorinators where chlorine bleach (sodium hypochlorite) is added to water and pumped into the wastewater stream by a small metering pump. These are easy and inexpensive to operate.*''[[UV_Light_Practitioner's Tool / UV Light (Natural_DisinfectionNatural Disinfection)|Radiation]]:'' Ultraviolet light is a strong disinfectant and can kill most bacteria found in wastewater. While initially more expensive than chlorinators, these methods save in the long run as they require much less operation.

*''[[Ozonation_(Physical_Disinfection)|Physical]]:'' Ozone is a highly reactive gas that kills pathogens on contact. Ozone generators are simple devices that produce the gas and then bubble it through the effluent to react with and kill pathogens. Ozonated effluent is especially clear and ideal for use in toilet flushing as the process also helps eliminate odors typically associated with treated wastewater effluent.

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