B-1210

NALMET® 1689 Technologyfor Soluble Metal Control PRODUCT DESCRIPTION AND APPLICATION NALMET 1689 is a polymeric technology proven to be very effective in capturing and precipitating mercury and other heavy metals from solution. NALMET 1689 treats wastewater for mercury and other heavy metals removal as a single treatment process or for effluent polishing. NALMET 1689 has been effective in treatment of plating or surface finishing process wastewater, metals from incidental corrosion, incinerator or other scrubber water, flue gas condensate, groundwater, wastewater from metal-catalyzed or metal handling processes, cooling water blowdown, etc. The treatment program is a simple one or two-step program consisting of the heavy metal precipitation and often a flocculant to enhance settleable floc formation. The NALMET 1689 polymer reacts with soluble metal ions to form insoluble complexes leading instant formation of large, easily settled floc. In some cases, additional flocculant may be required for optimum settleability. The formation of settleable floc is essential to An Ecolab Company Eliminates need for coagulant 2. TTC. Excellent effluent clarity 7. occurring within seconds in very acidic (pH 2) wastewater but slowly under alkaline conditions. The rate of decomposition is pH dependent. 75-90% reduction in flocculant usage 5. and sodium sulfide: 1. Form: Turbid liquid Color: Brown Odor: Sulfurous Specific Gravity@ 77°F (25°C): 1.2 lb/gal Solubility in Water: Complete pH (100%): 11. A typical NALMET 1689 application treating metal plating wastewater is shown in Figure 1.11. as shown in the following comparisons: NALMET 1689 technology versus DTC.01 ppm of hydrogen sulfide and 0. anionic products such as NALCLEAR® 7768 technology are often used in NALMET programs.2 to 2 ppm.1. Dosages may be as high as 30 ppm in some cases. Figure 1 – Typical NALMET application treating metal plating wastewater. ferrous sulfate. for the most current data. a cationic flocculant such as ULTIMER® 7752 technology or OPTIMER® 7196 Plus technology works well. In wastewaters with high dispersancy.COMPETITIVE COMPARISONS There are numerous advantages of the NALMET 1689 program over other chemical methods.35 Density: 9. When a flocculant is needed to assist in formation of settleable floc. SECTION 9. the ultimate removal of metals.13 VOC Content: 0. TMT. .1 . Do not operate below pH 3 at any point where unreacted product may be present. Lower aquatic toxicity than DTC or TTC 4. since the presence of colloidal particles in the final effluent can result in unacceptable metals concentrations.2 . Lower operator time/cost PHYSICAL & CHEMICAL PROPERTIES Refer to the Material Safety Data Sheet (MSDS). 20-83% reduction in sludge volume 6. for instance.00% DOSAGE AND FEEDING Hydrolytic Stability NALMET 1689 technology is unstable in water at low pH.10 ppm carbon disulfide. Typical dosage is 0. cooling water blowdown or photographic waste.5 . Complete decomposition of 1 ppm of NALMET 1689 technology will produce 0. Better tolerance of variable wastewater 3. Warning: Causes eye and skin irritation. for the most current data. please call your nearest Nalco Representative.com/mercury MerControl. SECTION 7. The metal-NALMET 1689 technology precipitate is more stable in water than is the free product. In case of skin contact. Good mixing of NALMET 1689 technology with wastewater at the product feedpoint should decrease this decomposition. During application of NALMET 1689 technology at pH<7. for the most current data. NALCO and the logo are Trademarks of Nalco Company Ecolab is a trademark of Ecolab USA Inc. Remove and Nalco Air Protection Technologies North America: 1601 West Diehl Road • Naperville.nalco. on skin or clothing. visit our website at www. promptly drink a large quantity of water. Storing NALMET 1689 product beyond six months is not recommended. If swallowed. the vapors can form explosive mixtures in confined areas over a wide range of vapor/air mixtures: 1. In some cases. For Medical and Transportation Emergencies involving Nalco products. please see the Material Safety Data Sheet for the telephone number. Do not induce vomiting. flush with water for 15 minutes. Also.NOTE: Carbon disulfide is a flammable liquid that gives off flammable vapors. however. wash contaminated clothing before reuse. Sulfurous Odor: Use in well-ventilated area or in a fume hood. ferrous sulfate can be used to scavenge unreacted product and prevent its decomposition. Illinois 60563 • USA Telephone: 1-630-305-1000 Europe: Richtistrasse 7 • 8304 Wallisellen • Switzerland www. All Rights Reserved 11-12 . Call a physician. SECTIONS 3 and 8. For more news about Nalco Air Protection Technologies. Harmful if swallowed. Wear goggles or face shield and rubber gloves when handling. SAFETY AND HANDLING Refer to the Material Safety Data Sheet (MSDS). Misuse of NALMET 1689 technology in low pH wastewater could result in the formation of an explosive gas mixture in the headspace of the treatment vessel and should be avoided.3 to 50% by volume in air at 68°F (20°C). STORAGE Refer to the Material Safety Data Sheet (MSDS). Call a physician. REMARKS If you need assistance or more information on this product. some product decomposition may occur simultaneously with metal ion precipitation. Do not get into eyes. Bulletin B-1210 ©2012 Ecolab USA Inc. NALMET 1689 technology overfeed (unreacted product) under acidic conditions will surely decompose and should be avoided. If splashed into eyes.nalco. so considerably less decomposition of reacted product occurs under acidic conditions.com/mercury. wash thoroughly with soap and water. Call a physician immediately.