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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Point Loma Wastewater Treatment Plant ： ウィキペディア英語版 Point Loma Wastewater Treatment Plant The Point Loma Wastewater Treatment Plant is a primary waste water treatment facility located on the Point Loma Peninsula in San Diego, California. It is a notable facility due to its ability to treat 1 gallon of waste water for 1/3000th of a penny. The process used to treat the waste water has been perfected to treat a large amount of water as inexpensive as possible. This waste water facility is also noted for its high percentage of removal of pollutants while also remaining a primary treatment facility. The solid removal rate is between 88–90% while the BOD (Biological Oxygen Demand) removal rate is kept at 60%. This unique process involves adding Hydrogen Peroxide in order to retrieve and recycle the iron salts that are used in treatment, thus enabling major cost savings. ==History and Background== Prior to the opening of the waste water plant, around 1869, the waste in San Diego was carried through interconnected wooden boxes. These boxes transported the water to the San Diego River and then on to the ocean. In 1943, the 32nd Street treatment plant was opened, and in 1948, the capacity of this plant was increased to 40 million gallons per day (MGD). A few years later, San Diego Bay was quarantined due to illness and in 1959 the city council approved the metro-sewage system and the Point Loma Wastewater Treatment Plant. The facility was opened in 1963〔(【引用サイトリンク】title=Point Loma Wastewater Treatment Plant )〕 and began treating 61 million gallons of water per day. In recent years, there have been many changes to legislation regarding the treatment of waste water such as implementing a spill reduction program. In 2013, the plant celebrated its 50th anniversary. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Point Loma Wastewater Treatment Plant」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.