Description
This powerpoint presentation begins by providing interesting facts concerning toxin removal and then examines several arsenic removal technologies and their residuals concerns, including: Ion Exchange – brine regenerant on-site disposal,highly concentrated liquid waste,non-selective technology – co-contaminants;Granular Iron/Titanium Media Systems (GIMS) – local attrition losses,backwash creates on-site discharge,saturated media disposal at local landfill,As concentration drives waste volume;Reverse Osmosis Concentrated liquid waste – local discharge;Coagulation/Filtration – local arsenic laden residuals created,landfill or local discharge;Titanium/Zeolites – local attrition losses,backwash creates on-site discharge,saturated media disposal at local landfill; and,Regenerable Media – off-site residuals disposal, vendor return. Two phases of residuals are presented and include: Liquid Phase Residuals – brines, concentrates, backwash, rinse water, pre-treatmentchemicals and attrition particles; and,Solid Phase Residuals – spent media, membranes, filters, dewatered sludge. Regulatory aspects are outlined, along with arsenic leaching, residuals assessment tests, solid media leaching, residuals minimization, and theoretical treatment/wasting scheme. Includes tables, figures.
Product Details
- Edition:
- Vol. – No.
- Published:
- 06/01/2007
- Number of Pages:
- 31
- File Size:
- 1 file , 810 KB
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
