一种去除污泥无机盐分的方法
By adjusting the sludge moisture content and pH value, and combining flocculant and alkaline solution treatment, the problem of large washing water volume in existing technologies has been solved, the calorific value of sludge has been improved, and the efficient resource utilization of sludge has been realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TIANJIN ENEW ENVIRONMENTAL PROTECTION ENGCO LTD
- Filing Date
- 2024-03-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for removing inorganic salts from sludge consume large amounts of water, leading to a decline in the quality of the washing water. Furthermore, the sludge has a low calorific value, making it difficult to treat it alone or in co-incinerate.
By adjusting the sludge moisture content and pH value, combined with flocculant and alkaline solution treatment, inorganic salts are separated and removed, including first conditioning, acid solubilization modification, second conditioning and dewatering steps, reducing the amount of water used in the washing process and increasing the calorific value of the sludge.
It reduces the consumption of washing water, decreases the load on wastewater treatment plants, and increases the calorific value of sludge, enabling it to be incinerated alone or in combination with other substances. It also reduces the amount of wastewater generated, and the filtrate can be reused as conditioning water.
Smart Images
Figure CN118005243B_ABST