Yes, it is good to use zeolite and PAC for wastewater treatment because both help to clean the dirty water in different ways. Zeolite is a natural mineral that removes harmful chemicals like ammonia, heavy metals, and bad smell from water. It works like a filter and catches these harmful things. PAC, which means powdered activated carbon, is very good at removing color, smell, and small harmful chemicals that zeolite cannot catch. When both are used together, they clean the water better because zeolite removes big harmful things and PAC removes small chemical pollutants. So, using both is a good idea to make wastewater cleaner and safer.

Using zeolite and powdered activated carbon (PAC) together in wastewater treatment enhances removal efficiency by leveraging their complementary properties, reducing costs and environmental impact. This combination effectively removes a broader range of pollutants, including heavy metals and organic micropollutants, improving overall water quality.

I guess it depends very much on what You need to achieve. PAC is very good in removing organic pollutants and used in a lot of full scale WWTPs for that. - However final clarification is not always easy as the PAC often does not sediment very well, thus the settlers need to have a sandfilter unit that is able to trap the last PAC fraction. I do not think Zeolites are used in any full scale treatment plant.