Greetings Apeksha Awasthi,

Inorganic coagulants like alum, lime, ferric or ferrous sulfate and polyaluminum chloride (PAC) can remove the color of waste water if only they contain dissolvable solids. If you wish, you can try and discuss. Thank you.

Thank you for a good question, for wastewater dyes removal you can try to use carbon nanofiber made from Tetraethyl orthosilicate(TEOS) with PAN and addition of DMF. You will need to use electrospinning technology for producing nanofibers then muffle furnace and tube furnace in the presence of nitrogen gas.

You can try to use inorganic coagulants that Mr.Thanaraj said. But you also need to think about pH when you use them for wastewater treatment.

We remove and biodegrade color (from dyes, ...) as well as other recalcitrant (hard-to-biodegrade) organic compounds purely biologically without any chemicals or other additives. This is an integral part of our advanced activated sludge process producing clean effluent with ultra-low BOD, COD, turbidity, SDI, ... for sustainable water reuse.

You can use adsorbent Nature based solutions like www.orgasorbinside.com - contact us for more info [email protected]

from my point of view ;

Inorganic coagulants like alum, lime, ferric or ferrous sulfate and polyaluminum chloride (PAC) can remove the color of waste water .

u can try to use inorganic coagulants that Mr.Thanaraj said. But you also need to think about pH when you use them for wastewater treatment.

activated carbon is not a coagulant. However, there are several types of natural clay can remove the color from the industrial wastewater. It is very inexpensive and many of these clay are available in the Egyptian soil and mountains.On the contrary, the produced sludge is great, Therefore, you have to define how to deal with this sludge.

sir thank you for an Unique and knowledgeable answer can you please tell me the name of those clay ?? Hussein Abdel-Shafy

For that purpose, the choice of inorganic coagulants that Mr.Thanaraj suggested you would be a better choice but the point raised by Eunho Chung must be considered

One of the reliable system for color removal is the membrane technology such as membrane bioreactor. This study was carried out by an Egyptian scientist proved efficient removal of some colors.

thank you for Answer.