A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
RECHARGE METHOD
To provide a recharge method that makes it possible to appropriately perform optimum setting of a specification and the like of a filter device.SOLUTION: A recharge method including removing an insoluble substance in object water W1 by filtering the object water W1 using a spring-type filter 11 having a surface on which precoat material is deposited and a precoat layer is formed and pouring object water W2 after processing of removing the insoluble substance has been performed, from a water pouring well 4 into the underground includes: performing recharging by repeating a cycle of filtering processing and back washing of the water pouring well 4 and previously generating relation among total surface area of spring-type filters, filtering time of one cycle, number/length of the spring-type filters, and iron concentration in object water; and on the basis of the relation among total surface area of spring-type filters, filtering time of one cycle, number/length of the spring-type filters, and iron concentration in object water, setting a cycle time and a processing flow rate for the object water W1.SELECTED DRAWING: Figure 1
【課題】最適なろ過装置の仕様等の設定を的確に行うことを可能にしたリチャージ工法を提供する。【解決手段】表面にプリコート材を付着させてプリコート層を形成したバネ式フィルター１１を用いて対象水Ｗ１をろ過して対象水Ｗ１中の不溶性物質を除去し、不溶性物質を除去処理した後の対象水Ｗ２を注水井戸４から地中に注水するリチャージ工法であって、ろ過処理と注水井戸４の逆洗のサイクルを繰り返してリチャージを行うようにするとともに、予め、バネ式フィルターの総表面積−１サイクルのろ過時間−バネ式フィルターの本数／長さ−対象水の鉄濃度の関係を作成しておき、該バネ式フィルターの総表面積−１サイクルのろ過時間−バネ式フィルターの本数／長さ−対象水の鉄濃度の関係に基づいて、サイクルタイムと対象水Ｗ１の処理流量を設定するようにした。【選択図】図１
RECHARGE METHOD
To provide a recharge method that makes it possible to appropriately perform optimum setting of a specification and the like of a filter device.SOLUTION: A recharge method including removing an insoluble substance in object water W1 by filtering the object water W1 using a spring-type filter 11 having a surface on which precoat material is deposited and a precoat layer is formed and pouring object water W2 after processing of removing the insoluble substance has been performed, from a water pouring well 4 into the underground includes: performing recharging by repeating a cycle of filtering processing and back washing of the water pouring well 4 and previously generating relation among total surface area of spring-type filters, filtering time of one cycle, number/length of the spring-type filters, and iron concentration in object water; and on the basis of the relation among total surface area of spring-type filters, filtering time of one cycle, number/length of the spring-type filters, and iron concentration in object water, setting a cycle time and a processing flow rate for the object water W1.SELECTED DRAWING: Figure 1
【課題】最適なろ過装置の仕様等の設定を的確に行うことを可能にしたリチャージ工法を提供する。【解決手段】表面にプリコート材を付着させてプリコート層を形成したバネ式フィルター１１を用いて対象水Ｗ１をろ過して対象水Ｗ１中の不溶性物質を除去し、不溶性物質を除去処理した後の対象水Ｗ２を注水井戸４から地中に注水するリチャージ工法であって、ろ過処理と注水井戸４の逆洗のサイクルを繰り返してリチャージを行うようにするとともに、予め、バネ式フィルターの総表面積−１サイクルのろ過時間−バネ式フィルターの本数／長さ−対象水の鉄濃度の関係を作成しておき、該バネ式フィルターの総表面積−１サイクルのろ過時間−バネ式フィルターの本数／長さ−対象水の鉄濃度の関係に基づいて、サイクルタイムと対象水Ｗ１の処理流量を設定するようにした。【選択図】図１
RECHARGE METHOD
リチャージ工法
ISHIKAWA AKIRA (author) / SERIZAWA SADAMI (author) / TAZAKI MASAHARU (author) / HAYASHI HIDEHIKO (author) / NIGIRIKAWA NAOHIRO (author)
2018-12-13
Patent
Electronic Resource
Japanese