Lnorganic chemical Inorganic salt
Because ferric chloride is widely used, liquid ferric chloride is an efficient and cheap flocculant for the treatment of urban sewage and industrial wastewater. COD and BOD.
| project | Indicator | |||||
| one type | second type | |||||
| solid | liquid | solid | liquid | |||
| （FeCl3）Quality score/% ≥ | 96.0 | 41.0 | 93.0 | 38.0 | ||
| （FeCl2）Quality score/% ≤ | 2.0 | 0.30 | 3.5 | 0.40 | ||
| Mass fraction of insoluble matter ≤ | 1.5 | 0.50 | 3.0 | 0.50 | ||
| （以HCL计））Quality score/% ≤ | — | 0.40 | — | 0.50 | ||
| （As）Quality score/% ≤ | 0.0004 | 0.0002 | ||||
| （Pb）Quality score/% ≤ | 0.002 | 0.001 | ||||
| (Hg) Quality score/% ≤ | 0.00002 | 0.00002 | ||||
| （Cd）Quality score/% ≤ | 0.0002 | 0.0001 | ||||
| [Cr(VI)]Quality score/% ≤ | 0.001 | 0.0005 | ||||
Compared with other wastewater treatment flocculants, its main characteristics are as follows:
1、It is more than 40% lower than the price of solid ferric chloride (same concentration) and can completely replace solid ferric chloride;
2、It is an aqueous solution, which eliminates the operation of solid preparation solution and the problem of incomplete dissolution;
3、Replace liquid or solid aluminum sulfate, polyaluminum chloride, polyferric sulfate and other flocculants, reduce the processing cost by more than 30%;
4、excellent flocculation performance, settling speed is higher than aluminum salt series flocculants (such as aluminum sulfate, polyaluminum chloride, etc.), and the formation of dense alum flowers;
5、The amount of generated sludge is small, which greatly saves the cost of sludge treatment；
6、It has a wide range of PH value to adapt to water body, it is 4-12, and the optimal pH range is 6-10。
