| 内容 |
論文 |
| 巻 |
9巻2号2004年
|
| Page |
103
|
| 題名 |
水源水質悪化時の取水制御システム
|
| Title |
New intake control system based on river water quality |
| 著者 |
○古川誠司，守川 彰，増田直人，坂口 功（三菱電機（株）） |
| Authors |
○Seiji Furukawa1，Akira Morikawa1，Naoto Masuda2 and Isao Sakaguchi3 |
| 著者表記 |
|
| 著者表記(英) |
|
| 著者勤務先名 |
|
| Office name |
|
| 著者所属名 |
|
| キーワード |
省エネ制御，コスト削減，濁度，取水，浄水場，水源 |
| Key Words |
Control，Cost Reduction，Turbidity，Intake，Water Purification Plant，Water Source |
| 概要 |
水源水質が悪化している期間は取水を抑制する一方、水質回復後に取水量を増やすことにより上水供給量としては過不足なくこれを維持しつつ、本来汚濁度の高い原水を処理するのに必要であったコスト、具体的には凝集剤添加や汚泥処分にかかるコストの削減を目的とした取水制御システムを提案した。 |
| Abstract |
The authors proposed a new intake control system for water purification plants based on river water quality. In this system the intake flow rate of a plant is to be decreased during river water is polluted whereas it is to be increased after water quality of the river is recovered. The purpose of this system is to reduce operational costs for water purification while securing the adequate amount of water supply. Simulation studies on the proposed system were conducted to investigate the reduced amount of coagulant dosage and waste sludge generated. Simulation results with two-year’ on-line turbidity data revealed that the reduction percentage of waste sludge for the first and second year was 5.8% and 8.5% respectively. By this remarkable effect, it was suggested that the proposed system could also contribute to enlarging the capacity of landfill sites for incinerated sludge and, moreover, preserve the environment. |
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