(a) Sketch out, and explain the expected log D vs pH plot in the solvent extraction of an organic amine RNH2 (pKa for RNH3 + = 9.5). [5 marks]
(b) Iodine is found in organic forms in plants and animals, and in inorganic forms in natural water samples. Using suitable equations, explain the effect of added iodide on the distribution ratio for the solvent extraction of iodine from water samples. [5 marks]
(a) Sketch out, and explain the expected log D vs pH plot in the solvent extraction...
(b) Iodine is found in organic forms in plants and animals and in inorganic forms in natural water samples. Using suitable equations, explain the effect of added iodide on the distribution ratio for the solvent extraction of iodine from water samples. [5 marks]
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...