{"product_id":"9781843399339","title":"Evaluation Of Ozone And Ultraviolet Light","description":"The objectives of this project were to: evaluate the benefits of ultraviolet light (UV) and ozone and determine how to integrate the two disinfection systems efficiently; compare medium pressure UV light (MP-UV) with the combination of ozone and MP-UV to determine their effectiveness in meeting CT requirements for inactivation of Giardia, Cryptosporidium, and viruses, especially in cold water; and compare the effects of MP-UV and the combination of ozone and MP-UV on the formation of disinfection by-products, DBP precursors, and the biostability\/bacterial regrowth potential. Protozoan parasites are a major public health concern as evidenced by waterborne outbreaks of Cryptosporidiumin the early 1990s.USEPA regulators have proposed new regulations which require site-specific means corresponding to the source water for the removal or inactivation of Cryptosporidium. For water systems with vulnerable sources, UV disinfection offers a cost effective approach.Utilities that have already installed ozone systems and those considering a multiple barrier approach to disinfection are interested in the effectiveness of UV alone and UV combined with ozone.","brand":"IWA Publishing","offers":[{"title":"Default Title","offer_id":47039109890288,"sku":"9781843399339","price":226.8,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781843399339_p0.jpg?v=1763742081","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781843399339","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}