Stainless steel pickling waste water/liquid waste resourceful treatment method and system
The invention provides a stainless steel pickling waste water/liquid waste resourceful treatment method and system. The method includes the steps that washing wastewater and waste acid liquid which are generated by stainless steel pickling are treated respectively; first-stage neutralized sedimentat...
Saved in:
| Main Authors | , |
|---|---|
| Format | Patent |
| Language | Chinese English |
| Published |
13.04.2016
|
| Subjects | |
| Online Access | Get full text |
Cover
Loading…
| Summary: | The invention provides a stainless steel pickling waste water/liquid waste resourceful treatment method and system. The method includes the steps that washing wastewater and waste acid liquid which are generated by stainless steel pickling are treated respectively; first-stage neutralized sedimentation is conducted on the washing wastewater, then second-stage neutralized sedimentation is conducted on the precipitating washing wastewater, aeration is conducted on the washing wastewater during second-stage neutralized sedimentation, the waste acid liquid is mixed with sludge generated during first-stage neutralized sedimentation when the washing wastewater is treated, then first-stage neutralization of the waste acid liquid is achieved, second-stage neutralization is carried out on the waste acid liquid subjected to first-stage neutralization, and aeration is conducted on the waste acid liquid during second-stage neutralization. |
|---|---|
| Bibliography: | Application Number: CN2016115501 |