Isikhombisi somshado we-Shandong Tonda sihlelwe ukuthi uhlale kakhulu ngokushesha lokusebenzisa ukusondela amagama-amasili njengesiyeqezelo sokugcina umsebenzi wendawo, njengekuhlola kokubheka emasipheni okanye ukuprosesa kominethala. Amabhedithi omnyama we-polyurethane wakhiwo lapho akhona imigrid yamabhedithi nge-micro-perforations (0.05–0.5 mm), ethi yiyingxenye yokufiltrisana ekukhulu kunye nokuphucula kakhulu kumahluko okulandelwayo. Ukungaphansi kwemali wakhiwo (modulus of elasticity 10–30 MPa) uhlanganisa isiphumo sokuqaphelela ngokupheleleyo ngokusondeza, uphucula ukwenzeka kwe-dewatering kunye nokuhlola engculayo. Ukhululekile nezilondolozi ezivunyelweyo zomshado wesikhombiso, uzokubonisa izicwangciso zokusebenza kunye nokuhlola kuhlu lokubheka. Phinda ukubalekela nethu ukubuyelela iindlela zakhiwo lokusebenzisa lokusondeza esikhombisweni somshado phakathi komphilo wewaste.