9월 17일, 관개와 식수 사용을 위한 빗물수집 부문의 전문회사인 Rainwater Resources가 1천500갤런의 수조·빗물수집 시스템이 테네시 주의 페러것 도시에 있는 이전의 유지 현장으로 옮겨진다고 발표했다. 이 새 시스템은 해당 지역에 연간 1만5000갤런의 물을 공급할 것으로 기대된다.

이 현장은 지역 분수령을 보호하는 다양한 방식을 입증하기 위해 야외 교실 같은 공원으로 조경되고 바뀌어져왔다.

 

 

TN town receives innovative stormwater collection system for landscape irrigation
    
Today, Rainwater Resources, a specialist in rainwater harvesting for irrigation and potable uses, has announced the transfer of a 1,500-gallon cistern/rainwater collection system to a former maintenance site in the city of Farragut, Tenn. The new system is expected to supply 15,000 gallons of water per year to the region.

The site has been landscaped and converted into a park-like outdoor classroom to demonstrate various methods of protecting local watersheds. Among those techniques is capturing rainwater from the classroom shelter rooftop and conveying it to storage for irrigating the park's extensive premises.

 

The design of the collection system operates on rainwater gravity flows into rooftop guttering and through a Wyse vortex pre-filter that diverts the first flush of dirty runoff, as required by current Environmental Protection Agency (EPA) regulations. When this flush is accomplished, the filter releases the remainder of each rain incident into the aboveground polyethylene tank.

 

Accordingly, a custom-made control display for public education, mounted near the tank, monitors performance, operates a submersible pump in the cistern and activates ultraviolet (UV) light purification. Key to maintaining clear water without chemical treatment is Rainwater Resources' ingress and egress flow design, which protects a natural biofilm inside the cistern. This biofilm, a naturally-occurring phenomena, guarantees clear, odor-free water.

 

[출처 = Water world / 2014년 9월 17일]