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008 271098s1980 th r 0000|0 eng d
035 _a.b10064722
099 9 _aAIT Thesis no.EV-80-20
100 1 _aBakti, Nordin Bin Abdul Kadir
245 1 0 _aAir stripping of ammonia from wastewater
260 _aBangkok :
_bAsian Institute of Technology,
_c1980
300 _aviii, 68 p.
490 1 _aThesis ;
_vno. EV-80-20
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1980
520 _aA mathematical model for the simulation of ammonia striping in crosscurrent spray system was presented. The use of the model for the design of the system was illustrated using the empirical relationships obtained in the laboratory. Experimental investigation revealed that the efficiency of the system increases with an increase in the initial ammonia concentration. Although the percent removal increases with the gas-to-liquid ratio, the unit efficiency based on unit air flow and initial ammonia concentration decreases with increasing gas-to-liquid ratio. The theoretical height of a transfer unit for ammonia (H0G)' which is the ratio of the gas rate to the volumetric overall gas-phase mass transfer coefficient was found to vary proportionally with gas-to-liquid ratio (G/L) in the ammonia concentration range between 140 mg/l and 225 mg/1, according to the following equation: in HOG= -0.3480 + 0.94 in(G/L) However, HOG was observed to be also influenced by the initial ammonia (Cf) at concentrations below 140 mg/l, according to the following equation: ln HOG = 6.2085 - 0.9525 ln Cf
650 0 _aSewage
_xPurification
_xNitrogen removal
700 0 _aChongrak Polprasert,
_eChairperson
700 1 _aNguyen, Cong Thanh,
_eCo-Chairperson
700 0 _aSamorn Muttamara,
_eExamination Committee
710 2 _a Malaysian Government,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. EV-80-20
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B21989
907 _a.b10064722
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