Cost and Efficacy around large scale filtration solutions

, I been trying to find out comparative costs and efficacy around filtration systems, hence my eagerness to see if I could get a copy of the research re the following link (without any success, re requesting etc.);

Whilst this is an old research paper I still feel it could be of value, unless you can point me in another direction. I am trying to make comparative costing and performance to assimilate the opportunity for an alternative ultrasound disinfection solution, which has high efficacy capability as well as much lower capex and opex cost structures, in both potable and wastewater applications.