{"product_id":"9781843396796","title":"Assessing Bioavailability Of Metals In Biosolids-Treated Soils","description":"Plant-availability of metals in biosolids-treated soils may be mathematically described by M t = C x [1 - e - (k x t) ] where M t (mg kg -1 ) is the cumulative metal removal from the biosolids-treated soils by growing and harvesting plants for t years, C is the total phytoavailable metal pool of the soil (mg kg -1 ) at t = 0, and k is the metal absorption rate coefficient (yr -1 ). The total available metal pool, C, is defined as metals extractable by organic acids in the rhizosphere of growing plants and k is related to the kinetics of metal release by organic acids. Half-life of the available metals in biosolids-amended soils may be derived from k. Experiments were conducted to characterize the concentration and composition of the organic acids. A successive extraction method was used to extract metals from biosolids-treated soils for determinging C and k. In this manner, the plant available metals of the bioslids-treated soils are defined by the total avialble metals, half-life, and duration of plant growing. Examples showed that the total available metals of the biosolids-amended were 18 to 39, 0.12 to 2.0, 7.4 to 13, 24 to 46, 1.2 to 2.1, and 43 to 53% of the total Cd, Cr, Cu, Ni. Pb, and Zn in the soils. This publication can also be purchased and downloaded via Pay Per View on Water Intelligence Online - click on the Pay Per View icon below","brand":"IWA Publishing","offers":[{"title":"Default Title","offer_id":47064572985584,"sku":"9781843396796","price":168.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781843396796_p0.jpg?v=1763742828","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781843396796","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}