Assuming the max TDS that can be discharged from a single-stage reverse osmosis treatment plant concentrate stream is 10,000mg/l. Assume the following feedwater chemistry (mg/l as CaCO3 except CO2 ): Ca2+200mg/1,Mg2+100,Na+1000,Ba2+2,HCO3200,SO42600,Cl500,pH 7.4, CO210ppm, temp---70 F, TDS---2,100. a. Identify any chemical deposition/scaling on the RO membrane for this feedwater and operating condition. b. List 4 techniques one could use to ensure against membrane chemical deposition/scaling. c. What is the max yield that one could operate w/o precipitating BaSO4(s) and still satisfy the concentrate discharge disposal requirement