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040 _aBD-DhUL
_cBD-DhUL
082 _a628.162
_bIMP
245 _aImpact of ammonia contamination on surface water treatment processes and its removal from polluted river water by aquatic macrophytes and nitrifying bacteria /
_h[PhD Thesis]
260 _aDhaka :
_bUniversity of Dhaka ,
_c2009.
300 _aVarious pagins :
_bill. (some col.) ;
_c29 cm.
500 _a Thesis (PhD)--Department of Microbiology, Universxity of Dhaka, 2005-06.
504 _aIncludes bibliographical references and index .
650 _2Water pollution.
942 _2ddc
_cREF
999 _c43463
_d43463