Mkuu
Mchambuzi,
Nashukuru kwamba nawe umeileta hoja hii. Nashukuru kwavile waliotangulia nimekuwa nikiwauliza swali ambalo mara zote wamelikwepa; hivyo nitarudisha swali/maswali husika kwako kama yalivyokuwa awali. Lakini nitangulie kusema kwamba, uharamau wa Gongo hautokani na hoja kwamba eti mazingira ya utengenezaji wake ni mabovu/machafu. Uharamu wa gongo is more than that. Technically, uharamu wa gongo unatokana na contents za gongo yenyewe. Kama ambavyo alizungumza mtoa mada wa awali, Gongo; among other things, is a solution of Methane and Ethanol. Hii Methanol ndiyo hatari yenyewe na kinachotakiwa ni ETHANOL and in fact not only Ethanol, but ethanol with acceptable amount of methanol.
Hivyo basi, swali ambalo watoa mada wa awali hawajanijibu ni hili hapa chini ambalo naomba wewe unijibu. Naomba tutumie formular za mleta mada wa awali kwavile ndicho hasa kinachotakiwa kujadiliwa.
MAANA HALISI YA GONGO...
Pamoja na impurities zingine zinazotakiwa kuondolewa, GONGO ni mixture(mchanganyiko) wa Ethanol na Methanol.
CHEMICAL FORMULA:
CH3OH + C2H6O = GONGO
methanol ethanol
METHANOL na ETHANOL hutenganishwa kwa kutumia tofauti ya BOILLING POINTS zao
Biollingi point of Methanol= 64.7 °C
Boilling point of Ethanol=78.37 °C
Hivyo Methanol itaanza kutoka na Ethanol itabaki kama pombe halisi( pure alcohol) ambayo ni salama kwa matumizi
NAWASHANGAA WANAOBEZA MAONI YA DR SLAA..
Nafikiri ni ufinyu tu wa kufikiri na sishangai sana maana hapa taifa ndipo lilipotufikisha, hatuna uwezo wa kuhoji wa kutafakari mambo kwa undani..
Kwanza kabisa nashangazwa na kauli yako hapo kwenye RED ya kuwaona watu wana akili finyu wakati suala hili ni la KITAALAMU zaidi kuliko kuwa la KISIASA! Tunaposema Gongo, among other compounds ni mixture ya ethanol na methanol tayari moja kwa moja linakuwa ni suala la kisayansi. Anyway, turudi kwenye mada.
Awali ya yote, kwavile mimi si mtalaamu wa masuala ya Kikemia, basi nitatumia elimu ndogo ya Organic Chemistry ya A-Level. Hata kama sitakuwa 100% RIGHT bado am certain sitakuwa mbali saaaaaana na ukweli.
Kwanza kabisa, Gongo=
CH3OH + C2H6O. Hii maana yake ni kwamba, to every cubic litre of Gongo, hiyo ni mixture ya CH3OH (Methanol) and C2H6O(ethanol). So, kabla hatujaenda huko kwenye Boiling Point, what's the percentage Methanol in that mixture? To put it in layman language, kuna asilimia ngapi ya Methanol (say) in every litre of GONGO? This's very important to know in order to make this discussion logical
(hapa naongeza leo kwa kusema, to make discussion scientific and not political discussion). Which means, if (say) in every litre of Gongo kuna 70% methanol, then keeping other factors constant, uki-apply heat kwa ajili ya ku-vaporize methanol then you'll only remain 30% of liquid Gongo! If so, will it be still economical if 1000 litres of today's DANGEROUS GONGO will only be 300 litres of SAFE GONGO? Will it still be economical if pipa moja la gongo ya leo ambalo ni 200 litres libaki kuwa only 60 litres? This literally means in order to maintain at least the same level of production, then current production inatakiwa kuongezeka at the same level of methanol available in every cubic unit of today's GONGO. Kiuchumi inabidi itokee economies of size so as to be economically profitable....so, will it still be at the advantage of today's poorer brewers or it'll have to attract other investors who're financially stable? If so, will it still serve the purpose (to support the poorer?)
Kama
Dr.W.Slaa na supporters wake hawana hizo figure, basi watakuwa wanajadili suala hili kisiasa zaidi kuliko kisayansi.
Umezungumza kirahisi kabisa kwamba Methanol and Ethanol zinatenganishwa kwa kuangalia Boiling Point zao! In a nutshell, you're RIGHT, lakini kwa mtu asiye na uelewa hata kidogo anaweza kudhani this's all about boiling the mixture then Methanol hiyooooo, ina-disappear wakati practically, FRACTIONAL DISTILLATION process inabidi i-take place thus increasing the production cost!! Si hivyo tu, umetaja BP ya Methanol 64.7 °C na ile ya Ethanol ni 78.37C....YOU'RE RIGHT! Lakini tusisahau kwamba hizo BPs ni za pure methanol and ethanol. Gongo ni mixture ya methanol, ethanol and other impurities; so heat applied inabidi iwe somewhere between 64.7 and 78.37.Hii maana yake ni kwamba, NO GUESSING....exact heat inabidi iwe applied at a certain level otherwise Methanol and Ethanol zote zitakuwa zina-evaporate thus minimizing the amount of Ethanol. However, the idea is to remove methanol and remain with ethanol. Umakini usipokuwapo, then si ajabu methanol yote ika-evaporate na kubakiwa na Ethyl Ethanol ambayo nayo ni hatari vilevile! Ni hatari coz' hata hizi spirit and in fact hata bia za kawaida zinakuwa na percentage methanol ndani yake ili ku-neutralize hii Ethyl Ethanol. The question is, can all those technical stuffs be handled by the existing poorer/local Gongo brewers or need some people specialized in the industry? If so, the same question arise again; will it serve the purpose?
Maswali ni mengi, jaribu kuyajibu hayo peke yake.
NB: Narudia, suala la Gongo ni la kikemia zaidi kuliko mazzingira ya utengenezaji wa hiyo gongo. Nimetumia arguments za mtoa mada wa kwanza coz', if you want this discussion not to be political discussion basi tunatakiwa kuangalia contents za gongo; that's Methanol and Ethanol and how we can evaporate Methanol from Ethanol huku pia tukihakikisha not all amount of methanol evaporates but some amount need to remain so as not to remain with Ethyl Ethanol.