Heat treatment wastewater treatment process equipment

‌Heat treatment wastewater treatment process equipmentKey considerations and equipment selection points:

1. Water quality and quantity: Accurate analysis of phosphorus forms (orthophosphate, hypophosphite, organic phosphorus?), fluoride concentrationpHCoexisting ions（Ca²⁺, Mg²⁺, Al³⁺, Fe³⁺, SO₄²⁻, ClThe content of organic matter, water content, and fluctuations. This is the basis for selecting the process and equipment scale.

2. Emission standards: Strictly define the emission limits for fluoride and total phosphorus that need to be met, as well as other indicators（COD, SS, pHEtc.).

3. Core process selection:

Calcium salt precipitation method (stone ash method): commonly used, low cost, can simultaneously remove phosphorus and fluorine. But the sludge production is large,pHHigh control requirements may result inCaSOThe precipitation effect is affected by factors such as ₄.

aluminum salt/Iron salt precipitation method: high phosphorus removal efficiency, good floc settling properties, and goodpHThe adaptability range is relatively wide. It has a certain removal effect on fluoride, but not as good as calcium salts. Iron salts may introduce chromaticity.

Combination process: such as "calcium salt defluorination+aluminium/Iron salt phosphorus removal "or" chemical precipitation+adsorption/Membrane treatment "to meet stricter standards.

4. Automated control:

Key:pHOnline monitoring and controlORP(oxidation-reduction potential, such as when treating secondary phosphorus), automatic control of chemical dosage (based on flow ratepHFluorine/Phosphorus online monitoring instrument feedback, liquid level control, equipment linkage. High level automation is the key to ensuring stable and compliant processing results, reducing operating costs, and minimizing manual intervention.

5. Equipment material:

Corrosion prevention is crucial: wastewater usually contains acid, alkali, fluoride ions (highly corrosive), and salt. Common materials:PP/PE/PVC/FRP(Pipeline, tank, agitator)316LStainless steel (key components), carbon steel lining rubber/plastic-lined/Apply epoxy. Avoid using ordinary carbon steel and glass.

6. Operating costs: Pharmaceutical expenses (lime, calcium salts, aluminum)/Iron saltPAMAcid and alkali), electricity (mixing, pumping, fan, dewatering machine), sludge disposal fee (high cost of hazardous waste disposal), labor cost, maintenance fee. Comprehensive consideration should be given to equipment selection and process optimization.

7. Floor area: Choose the appropriate equipment combination based on site conditions (such as efficient sedimentation tanks that save land compared to traditional sedimentation tanks).