Ebintu bya Secco polyacrylamide bijja mu ngeri ez'enjawulo era biyinza okukozesa amazzi ag'enjawulo ag'amakolero. Leero, omuwandiisi wa Secco ajja kukunnyonnyola: Oyinza ntya okulonda ekikozesebwa mu kunaaba emmotoka?

Olw'okulongoosebwa kw'embeera y'obulamu bw'abantu, emmotoka zifuuka engeri enkulu ey'entambula ey'abantu okutambula. Omuwendo gw'amaka agalina emmotoka nakwo gweyongera. Kino era kyatuukiriza enkulaakulana y'amakolero g'okunaaba emmotoka. Kyokka, amazzi ag'omusaayi ag'okunaaba emmotoka galina engeri y'obuzibu obunene, obuzibu obunene n'okubeerawo kw'ebintu ebikola ku ttaka. Obujjanjabi buzibu nnyo. Mu ngeri entuufu, enkola ya coagulation ekozesebwa ng'ekitundu ekisookerwako okulongoosa amazzi ag'omusaayi ag'okunaaba emmotoka, kye kintu ekisinga obulungi. Mu nkola eno ey'okujjanjaba, bakozesa ebikozesebwa mu kukola ebintu ebiyitibwa coagulants ne polyacrylamide flocculant. Ebintu ebikozesebwa nnyo bye bifaananyi bya aluminum sulfate flocculant, polyaluminum chloride (PAC), polyferric sulfate (PFS), ne polyaluminum chloride iron (PAFC), n'ebirala.

Okusobola okutuuka ku nkola esinga obulungi ey'okusaasaanya amazzi, kikulu nnyo okulonda ekikozesebwa mu kusasaanya amazzi okusinziira ku ngeri y'amazzi egy'enjawulo. Okujjanjaba amazzi ag'omusaayi ag'okunaaba emmotoka, tukozese okugezesa ku mutindo ogusinga obulungi ogw'amazzi ag'omusaayi ago. Bw'okozesa polyaluminum chloride + polyacrylamide awamu, omutindo gw'amazzi agava mu mazzi gasinga obulungi. Okuva mu nkola y'okunoonyereza ku bbeeyi, ebbeeyi entono bw'okozesa aluminum sulfate + polyacrylamide.

Bw'oba olina ebibuuzo mu nkola y'okulongoosa amazzi ag'omusaayi ne polyacrylamide, osobola okubuulirira abakugu abalina obumanyirivu ekiseera kyonna. Tujja kweemererwa okukuweereza.