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    • 1. 发明申请
    • IN-SITU GROUNDWATER NITRIFICATION AND DE-NITRIFICATION REMEDIATION SYSTEM
    • 现场地下水硝化和净化补救系统
    • US20090026134A1
    • 2009-01-29
    • US12174078
    • 2008-07-16
    • Stephen B. MailathAnn Chien Chu
    • Stephen B. MailathAnn Chien Chu
    • C02F3/34C02F101/16C02F103/06
    • C02F3/302B09C1/002C02F1/001C02F2103/06C02F2305/06
    • A method of in-situ groundwater nitrification, by: extracting groundwater from the ground; adding oxygen to the extracted groundwater; adding nutrients to the extracted groundwater; and injecting the groundwater back into the ground, wherein the oxygen reacts with in-situ nitrifying bacteria to oxidize ammonia to nitrate, and wherein the nutrients encourage the nitrifying bacteria to grow and reproduce. A method of in-situ groundwater de-nitrification, by: extracting the groundwater from the ground; adding carbon to the extracted groundwater; adding nutrients to the extracted groundwater; and injecting the groundwater back into the ground, wherein the carbon reacts with in-situ de-nitrifying bacteria to reduce nitrate to nitrogen gas, and wherein the nutrients encourage the de-nitrifying bacteria to grow and reproduce.
    • 一种原位地下水硝化方法,通过:从地下提取地下水; 向提取的地下水中加入氧气; 向提取的地下水中添加营养; 并将地下水注入地下,其中氧与原位硝化细菌反应以将氨氧化成硝酸盐,并且其中营养物质促使硝化细菌生长和繁殖。 一种原位地下水脱硝方法,通过:从地下提取地下水; 向提取的地下水中加入碳; 向提取的地下水中添加营养; 并将地下水注入地下,其中碳与原位脱氮细菌反应以将硝酸盐还原成氮气,并且其中营养物质促使脱氮细菌生长和繁殖。
    • 2. 发明授权
    • In-situ groundwater nitrification and de-nitrification remediation system
    • 原位地下水硝化和脱氮补救系统
    • US07407583B2
    • 2008-08-05
    • US11090380
    • 2005-03-25
    • Stephen B. MailathAnn Chien Chu
    • Stephen B. MailathAnn Chien Chu
    • C02F3/02
    • C02F3/302B09C1/002C02F1/001C02F2103/06C02F2305/06
    • A method of in-situ groundwater nitrification, by: extracting groundwater from the ground; adding oxygen to the extracted groundwater; adding nutrients to the extracted groundwater; and injecting the groundwater back into the ground, wherein the oxygen reacts with in-situ nitrifying bacteria to oxidize ammonia to nitrate, and wherein the nutrients encourage the nitrifying bacteria to grow and reproduce. A method of in-situ groundwater de-nitrification, by: extracting the groundwater from the ground; adding carbon to the extracted groundwater; adding nutrients to the extracted groundwater; and injecting the groundwater back into the ground, wherein the carbon reacts with in-situ de-nitrifying bacteria to reduce nitrate to nitrogen gas, and wherein the nutrients encourage the de-nitrifying bacteria to grow and reproduce.
    • 一种原位地下水硝化方法,通过:从地下提取地下水; 向提取的地下水中加入氧气; 向提取的地下水中添加营养; 并将地下水注入地下,其中氧与原位硝化细菌反应以将氨氧化成硝酸盐,并且其中营养物质促使硝化细菌生长和繁殖。 一种原位地下水脱硝方法,通过:从地下提取地下水; 向提取的地下水中加入碳; 向提取的地下水中添加营养; 并将地下水注入地下,其中碳与原位脱氮细菌反应以将硝酸盐还原成氮气,并且其中营养物质促使脱氮细菌生长和繁殖。