ʻO kahi wahi noi nui o ka mīkini ʻenehana i ulana ʻia, ʻo ia ka ʻoihana petrochemical, ʻo kēia ʻano o ke kila kila i ulana ʻia he mea maʻamau kiʻekiʻe, he mea koʻikoʻi loa ia e hāʻawi aku i ka ʻike o nā mea hao, ka pololei micron mesh a me ka uea haki a i ʻole ka hoʻopau ʻana i ka uea pālua.