发明名称 |
Controlled method of minimizing radioactive sludge generation in post stimulation flowback and/or produced water treatment from a saltwater, oil and/or gas well |
摘要 |
Disclosed herein is a controlled method of minimizing radioactive sludge generation in treatment of wastewater from an oil and/or gas well. The method comprises measuring a concentration of a radioactive material in wastewater to be treated and measuring a concentration of barium in the wastewater to be treated. The method further comprises adding a calculated quantity of sulfate to the wastewater to be treated sufficient to precipitate a quantity of barium sufficient to reduce the concentration of the radioactive material to a level such that sludge precipitated in a secondary precipitation has a radiation level below a defined radiation level. |
申请公布号 |
US8894864(B2) |
申请公布日期 |
2014.11.25 |
申请号 |
US201113204849 |
申请日期 |
2011.08.08 |
申请人 |
Evoqua Water Technologies LLC |
发明人 |
Karrs Stanley R.;Altman Richard A. |
分类号 |
C02F1/52;C02F5/02;C02F5/00;C02F101/00;C02F103/08;C02F103/10 |
主分类号 |
C02F1/52 |
代理机构 |
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代理人 |
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主权项 |
1. A controlled method of minimizing radioactive sludge generation in post stimulation flowback and/or produced water treatment from a saltwater, oil, and/or gas well comprising:
measuring a concentration of a radioactive material in wastewater to be treated comprising flowback and/or produced water; measuring a concentration of barium in the wastewater to be treated; adding a calculated quantity of sulfate to the wastewater to be treated sufficient to reduce the concentration of the radioactive material to a level such that a second sludge precipitated in a secondary precipitation has a radiation level below a defined radiation level; precipitating barium sulfate and the radioactive material from the wastewater to be treated to form a radioactive sludge and a partially treated wastewater; and performing the secondary precipitation on the partially treated wastewater to form the second sludge and a treated wastewater. |
地址 |
Warrendale PA US |