아리조나주 그랜드 캐넌에 위치한 사우스림(South Rim) 폐수처리 플랜트는 작업을 개선하기 위한 노력의 일환으로 덴마크의 펌프 ·믹서 제조 기업인 Landia사로부터 내구성이 높은 논클로그(non-clog) 펌프를 곧 공급받을 예정이다. Landia의 초퍼펌프(chopper pump)는 고형물의 유입을 방지하기 위해  독특한 외부 방식의 나이프 시스템(knife system)으로 설계되었으며, 플랜트의 반환된 활성 슬러지 및 폐 활성 슬러지와 인접해 설치된다.

미국 내 산업사용자로부터 하루 평균 50만 갤런의 폐수를 공급받으는 사우스림 폐수처리 플랜트는 애리조나 도시에 본사를 둔 국립공원 서비스에 의해 관리된다.

The South Rim Wastewater Treatment Plant (WWTP), located at the Grand Canyon in the state of Arizona, will soon receive six highly durable non-clog chopper pumps from Landia, a Danish-based pump and mixer manufacturer, in an effort to improve operations.

The Landia chopper pumps, which are designed with a unique external knife system to prevent solids from entering the pumps' casing, will be installed adjacent to the plant's Returned Activated Sludge (RAS) and Waste Activated Sludge (WAS) basins, where they will pump the sludge while chopping up rags and other debris.

Receiving a gravity-fed daily average of half a million gallons of wastewater from domestic and industrial users, South Rim WWTP is managed by the National Park Service, based in the city of Flagstaff, Ariz.

With the help of volunteers and park partners, The National Park Service (established 1916) safeguards more than 400 places, preserving local history, celebrating local heritage, and creating close-to-home opportunities for kids and families to get outside, be active and have fun.

Attracting over 4 million visitors each year, the Grand Canyon has a unique water management system, which is vital to its sustainability. The Landia chopper pumps are manufactured with a design-life of 20-plus years.

[출처 = Water World / 2015년 8월 4일]