System and method for treating printed circuit board (PCB) wastewater
US11760675B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2023 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Mar 31, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2305/026
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A system for treating printed circuit board wastewater (PCB) includes a production system, a pretreatment system, a biochemical system, a recovery system and a concentrated water treatment system. The production system is configured for producing process water and auxiliary water from tap water. The pretreatment system is configured to pretreat different wastewater samples separately. The biochemical system is configured to decompose the pretreated wastewater. The recovery system is configured to treat wastewater from the pretreatment system and the biochemical system to obtain process water and feed concentrated water to the concentrated water treatment system. The concentrated water treatment system is configured to treat the concentrated water to meet a discharge standard. A treatment method for the PCB wastewater is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.