In 1989 a controversy arose concerning the chemical daminozide, or Alar, which was sprayed on apple trees to yield redder, firmer, and more shapely apples, Concerns about Alar’s safety stemmed from the suspicion that one of its breakdown products, unsymmetrical dimethylhylhydrazine (UDMH), was carcinogenic. Alar is no longer sold for food uses. UDMH has the empirical formula of CNH4 and has a molecular mass of 60.099. What is the molecular formula for UDMH?
In 1989 a controversy arose concerning the chemical daminozide, or Alar, which was sprayed on apple...
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...