Phosphorus in wastewater cannot be removed
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The effluent from the biochemical tank contains 20 ppm of phosphorus; 10 KG of phosphorus removal agent is added to 3 tons of water, yet the phosphorus level remains around 5 ppm after testing. Could it be that the phosphorus removal agent was not chosen properly? A mixture of an alkaline and an acidic type was used. Alkali is used in small amounts, at a ratio of 1:3. Phosphorus levels just won’t go down; using more phosphorus removal agents results in an excessive amount of sludge, and flocculation and sedimentation don’t work well. Seeking help. How should I deal with this?
What is the coagulant and flocculant you use? And how is the PH controlled? The most important thing is to accelerate sludge discharge
If it is orthophosphate, common ions such as Ca, Fe, and Al can generally meet the 0.5 mg/L requirement; however, if the water contains phosphites and metaphosphates, this method cannot remove them.
For 20mg, treatment with lithium ion exchange resin can be considered; we have specialized phosphorus-removal resins, and if you are interested, feel free to contact me for more details.
In the conventional activated sludge process, phosphorus removal is mainly achieved through sludge discharge. It is necessary to control the sludge discharge volume.
This post was last edited by zhaolijun on 2015-9-15 09:13. You can try solvent extraction to remove phosphorus
I have phosphorus removers that can help you
Good sludge discharge control can be achieved using the MBR process; feel free to contact me if you’re interested
What is a phosphorus removal agent? It is either an alkali or an acid, or calcium, or some kind of coagulant. In the case of orthophosphorus, controlling the pH level properly makes it easy to meet the standards through conventional sedimentation. It is recommended to conduct several on-site pilot tests.
Uh, how can an acid and a base be used together? Is this okay? ? ? ? ? ? ? ? ? 、? ? ? ? 、