Required MBBR Sewage Treatment plant structural layout

I am seeking expert assistance in designing a high-performing and low-maintenance MBBR (Moving Bed Biofilm Reactor) for a commercial sewage treatment plant. This project focuses on a capacity of 20KLPD. The primary objective is to make sure the system is designed to efficiently remove specific contaminants, notably nitrogen compounds.

Key Project Requirements:
required structural layout, mechanical drawing


Ideal Skills and Experience:
- Strong background in structural design and environmental engineering
- Proven experience in designing commercial sewage treatment plants
- Exceptional knowledge on MBBR systems
*before bidding first download the attached drawing and understand