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...
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Main Authors | , |
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Format | Patent |
Language | Chinese English |
Published |
13.04.2016
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Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: CN2016115501 |