Compact mini sewage treatment plant - LD sewage treatment unit scavenger, zuva rega rega rekugadzirisa simba re 0.3-0.5m3 / d, diki uye inoshanduka, pasi pekuchengetedza nzvimbo. STP inosangana nezvinodiwa zvekurapwa kwetsvina yemumba kumhuri, nzvimbo dzinoyevedza, mavillas, chalets nezvimwe zviitiko, zvichirerutsa zvakanyanya kudzvanywa kwenzvimbo yemvura.