a. Sketch a flow diagram for a treatment system that would produce a suitable water quality for cliff-side discharge. Explain the purpose for each step and why you would need it in this case.
b. The community is considering the provision of recycled water. Two options have been proposed, one for irrigating green spaces and one for providing non-potable water to industry. What extra treatment would you recommend in each case? Which option would you recommend to the local authorities and why?