NOVELTY - Process (I) for producing ethanol by fermenting biomass containing carbohydrate, comprises: (a) contacting solids-containing feedstock comprising fermentable sugars in aqueous fermentation medium to convert sugars to ethanol and provide fermentation broth; (b) separating broth to provide clear liquor and concentrated solids fraction; (c) fractionating solids fraction; (d) contacting clear liquor with biocatalyst to convert fermentable sugars to organic product and provide first product stream; and (e) recovering organic product.    USE - The processes are useful for producing ethanol and other bioproducts such as at least one of acetic acid, ethylene glycol, propionic acid, n-propanol, isopropanol, propanediol, hydroxypropionic acid, n-butanol, isobutanol, butanediol, hexanol, lactic acid and succinic acid (claimed).    ADVANTAGE - The processes: achieve higher ethanol conversion and provide ethanol with high yield, without undue capital and operating costs; reduce energy requirements per unit of ethanol production, hence economical; and provide higher organic compound as a co-product with ethanol. In the processes: the sugars contained in the thin stillage are converted to ethanol without generating solid waste; the evaporation step recovers the produced ethanol and enables its recycle to the hydrolyzing step with water recovered from the thin stillage in the evaporation step, and this ethanol is recovered in the fractionation step, thus eliminating the need for any additional ethanol distillation equipment; and the fermentation step bioconverts portion of the metabolites to bioproducts, thus enhancing the ability to setback thin stillage without the need for processing in the evaporation step, and reducing energy costs.    DETAILED DESCRIPTION - Process (I) for producing ethanol by the fermentation of biomass containing carbohydrate, comprises: (a) contacting a solids-containing feedstock comprising fermentable sugars in an aqueous fermentation medium in a batch fermentor and under fermentation conditions including the presence of a microorganism capable of bioconverting sugars to ethanol, to convert a portion of the sugars to ethanol and provide a fermentation broth comprising ethanol, unconverted sugars, solids and water, where the concentration of ethanol in the aqueous fermentation medium does not exceed that which is unduly deleterious to the microorganism; (b) during or after step (a) separating at least a portion of the fermentation broth from step (a) to provide a clear liquor containing ethanol, unconverted sugars and water and a concentrated solids fraction comprising ethanol, unconverted sugars, solids and water; (c) fractionating by distillation at least a portion of the concentrated solids fraction to provide an ethanol product fraction and a whole stillage bottoms fraction; (d) contacting at least a portion of the clear liquor with biocatalyst under metabolic conditions to bioconvert at least a portion of the fermentable sugars in the clear liquor to at least one organic product and provide a first product stream comprising the organic product and water, where the biocatalyst comprises a solid structure of hydrated hydrophilic polymer defining an interior structure having many interconnected major cavities having a smallest dimension of 5-100 mu m and an hydration expansion volume of at least 1000, and a population of microorganisms capable of converting sugars to at least one organic product substantially irreversibly retained in the interior of the solid structure, where the population of microorganisms are in a concentration of at least 60 g/l based upon the volume defined by the exterior of the solid structure when fully hydrated, and the first product stream has a substantial absence of solids; and (e) recovering at least one organic product from the first product stream. INDEPENDENT CLAIMS are also included for:    (1) a process (II) for the bioconversion of sugars to ethanol and bioproduct, comprising (a1) separating a process stream containing fermentable sugars and solids in an aqueous medium to provide a clear liquor containing fermentable sugars and water and a concentrated solids fraction comprising fermentable sugars, solids and water, (b1) contacting at least a portion of the clear liquor with biocatalyst under conversion conditions to bioconvert at least a portion of the fermentable sugars in the clear liquor to at least one organic product and provide a first product stream comprising the organic product and water, (c1) recovering at least one organic product from the first product stream and providing a water-containing lean stream, (d) combining at least a portion of the lean stream from step (c1) with the concentrated solids fraction of step (a1) to provide a combined stream comprising solids, fermentable sugars and water, (e1) subjecting the combined stream of step (d1) under fermentation conditions sufficient to convert at least a portion of the fermentable sugars to ethanol to provide an ethanol- containing fermentation broth, where the fermentation conditions comprise the presence of microorganism capable of bioconverting sugars to ethanol, and (f1) fractionating by distillation at least a portion of the ethanol-containing fermentation broth to provide an ethanol product fraction and a whole stillage containing water and solids;    (2) a process (III) for producing ethanol by the fermentation of biomass containing carbohydrate; and    (3) a process (IV) for production of ethanol and other bioproduct from an aqueous fermentation broth comprising ethanol and containing solids.