| 摘要 |
<p>A method or process for treating wastewater containing high organics, sil ica, boron, hardness, and suspended and dissolved solids. The method include s degasifying the wastewater for the removal of dissolved gases and thereaft er chemically softening the wastewater. After the chemical softening step, t he wastewater is directed through a media filter or membrane which removes a dditional solids and precipitants. Thereafter the wastewater is directed thr ough a sodium ion exchange that further softens the wastewater. The effluent from the ion exchange is directed through a cartridge filter and the efflue nt from the cartridge filter is directed through one or more reverse osmosis units. At a selected phase of the process, prior to the wastewater reaching the reverse osmosis unit or units, the pH of the wastewater is raised and m aintained such that the pH of the wastewater reaching a reverse osmosis unit is at a pH greater than 10.5.</p> |
