{"product_id":"9781900222037","title":"Secondary Settling Tanks","description":"Although developments in wastewater treatment over recent decades have focused on the biological reactor, the secondary settling tank (SST) also plays a major role in achieving increasingly stringent effluent quality standards. \u003cp\u003eThis report collates many of the significant developments that have taken place in SST theory, design, modelling and operation. Earlier SSTs were designed only by empirical hydraulic criteria such as overflow rate, which do not recognize sludge concentration and settleability. Today, there are available not only much improved design procedures but also hydrodynamic models for simulating water and solids distribution and flows in full-scale SSTs. \u003c\/p\u003e\u003cp\u003eNine chapters cover a wide range of subjects including: \u003c\/p\u003e\u003cp\u003eFlocculation and settling behaviour of biological sludges \u003cbr\u003eSST performance evaluation protocols \u003cbr\u003eDevelopment and evaluation of the different design procedures such as the flux theory and the ATV design rules \u003cbr\u003eDevelopments in and application of one- two- and three-dimensional modelling \u003cbr\u003eExperience-based aspects of design and operation of circular, rectangular and vertical SSTs.\u003c\/p\u003e","brand":"IWA Publishing","offers":[{"title":"Default Title","offer_id":47052625641712,"sku":"9781900222037","price":137.27,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781900222037_p0.jpg?v=1763613001","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781900222037","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}