Mining Industry
Problem Statement
The client required a filtration plant based on an existing design which was provided to Watericon as a flow diagram. The filtration skid must produce 5m3/h potable water and requires filtration and disinfection of the water.
Solution
Watericon built a water treatment plant that includes duty/standby feed pumps, chemical dosing, media filtration and UV disinfection. Dosing of a pH correcting chemical and flocculant was included before the filters to enhance filtration effectiveness. Inline mixers are included after the flocculant dosing and pH adjustment dosing to ensure the chemicals are well-mixed before the filter bank.
Mixed media (sand and anthracite) was selected for filtration to filter out both larger and finer particles. The media filters have timer-based control valves to control the backwash of each filter. Three filters were arranged in parallel on the skid to ensure that product water can be produced, even when one filter is in backwash. Both chemical and UV disinfection are included with the UV lamps arranged in a duty/standby configuration.
Process
- Feed pump
- Flocculant dosing and mixing
- pH adjustment dosing and mixing
- Filter bank
- Disinfection dosing
- UV lamps
Result
- Turbidity <5 mg/L
- Water sufficiently disinfected