Rashin ruwa na Knellpoort

Madatsar ruwan Knellpoort madatsar ruwa ce mai nau'in nauyi da baka wadda take kan Riet Spruit, kusa da Wepener, Free State, Afirka ta Kudu . An kafa ta a shekarar 1989. Saboda yadda ta yi ambaliya, ƙarfin ajiyar ruwa na Madatsar ruwan Welbedacht ya ragu da sauri daga ainihin mita miliyan 115 zuwa kimanin mita miliyan 16 a cikin shekaru ashirin tun bayan kammala aikin. Wannan raguwar ajiyar ruwa ya haifar da matsaloli wajen biyan buƙatar ruwan Bloemfontein a matakin aminci mai karɓuwa, kuma sakamakon haka, matattarar ruwa ta 50 ta fara aiki a yankin. An kammala madatsar ruwan Knellpoort mai tsayi a shekarar 1989. Ita ce madatsar ruwa ta farko da aka yi wa laƙabi da siminti (RCC) a duniya kuma ta ƙunshi kusan siminti mai girman mita 64 da faɗin mita 3 da kuma siminti mai girman mita 14 da faɗin mita 200 tare da jimlar ƙarfin ajiya na mita miliyan 136 . Domin hana irin waɗannan matsalolin da suka shafi laka kamar waɗanda aka fuskanta a madatsar ruwa ta Welbedacht, madatsar ruwa ta Knellpoort tana aiki a matsayin madatsar ruwa ta ajiya wadda ba ta da hanyar sadarwa, tare da ƙaramin yanki na magudanar ruwa mai girman 764 kacal. km2 da kuma matsakaicin kwararar ruwa ta shekara-shekara (MAR) mai kimanin miliyan 20 m 3 /a. Ana tura ruwa daga Kogin Caledon zuwa madatsar ruwa ta Knellpoort daga Tashar Famfon Tienfontein ta hanyar 2 magudanar ruwa mai tsawon kilomita wanda aka sanya masa tarkon datti don rage datti a cikin babban magudanar ruwa. Babban manufar madatsun ruwa ita ce a yi amfani da su ga ƙananan hukumomi da masana'antu kuma an sanya su a matsayi mafi girma a cikin haɗarin da ke tattare da su (3). Duba kuma Dam na Welbedacht Jerin madatsun ruwa da madatsun ruwa a Afirka ta Kudu Jerin koguna na Afirka ta Kudu Manazarta