<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.mkutano huo, ambao ulianza rasmi jana jumapili na unapangwa kuendelea hadi septemba 11, unawajumuisha wataalamu kutoka karibu mataifa 130 duniani ili kujadili juu ya mada inayojulikana kama, changamoto ya ubora wa maji, uzuwiaji, matumizi ya busara na kupunguza matumizi.  <response>: the meeting, which kicks off sunday and is scheduled to last until september 11, will draw experts from around 130 countries to discuss the theme: the water quality challenge -prevention, wise use and abatement. 