(12) Patent Application Publication (10) Pub. No.: US 2011/0024361 A1 Schwartzel Et Al
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US 2011 0024.361A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2011/0024361 A1 Schwartzel et al. (43) Pub. Date: Feb. 3, 2011 (54) AQUEOUSTREATMENT APPARATUS Related U.S. Application Data UTILIZING PRECURSORMATERALS AND ULTRASONICS TO GENERATE (60) Provisional application No. 60/933,228, filed on Jun. CUSTOMIZED 4, 2007. OXDATION-REDUCTION-REACTANT Publication Classification CHEMISTRY ENVIRONMENTS IN (51) Int. Cl. ELECTROCHEMICAL CELLS AND/OR CO2F I/467 (2006.01) SMILAR DEVICES C25F I/00 (2006.01) (52) U.S. Cl. .................... 210/739; 204/29001: 205/769; (76) Inventors: David T. Schwartzel, Albuquerque, 205/766: 210/748.02; 204/228.6 NM (US); Michael L. Fraim, Corrales, NM (US) (57) ABSTRACT An electrochlorination and electrochemical system for the Correspondence Address: on-site generation and treatment of municipal water Supplies RODEY, DICKASON, SLOAN, AKIN & ROBB, and other reservoirs of water, by using a custom mixed oxi PA dant and mixed reductant generating system for the enhanced P.O. BOX 1888 destruction of water borne contaminants by creating custom ALBUQUEROUE, NM 87103 (US) oxidation-reduction-reactant chemistries with real time monitoring. A range of chemical precursors are provided that (21) Appl. No.: 12/663,187 when acted upon in an electrochemical cell either create an enhanced oxidation, or reduction environment for the (22) PCT Fled: Jun. 4, 2008 destruction or control of contaminants. Chemical agents that can be used to control standard water quality parameters such (86). PCT No.: PCT/USO8/O7046 as total hardness, total alkalinity, pH, total dissolved solids, and the like are introduced via the chemical precursor injec S371 (c)(1), tion Subsystem infrequently or in real time based on sensor (2), (4) Date: Dec. 4, 2009 inputs and controller set points. 214(S 27 Patent Application Publication Feb. 3, 2011 Sheet 1 of 14 US 2011/0024.361 A1 FIGURE 1 Patent Application Publication Feb. 3, 2011 Sheet 2 of 14 US 2011/0024.361 A1 Figure 1 a Figure 1b Figure 1c Patent Application Publication Feb. 3, 2011 Sheet 3 of 14 US 2011/0024.361 A1 138 117 140 FIGURE 2 Patent Application Publication Feb. 3, 2011 Sheet 4 of 14 US 2011/0024.361 A1 216 210 FIGURE 3 Patent Application Publication Feb. 3, 2011 Sheet 5 of 14 US 2011/0024.361 A1 FIGURE 4 Patent Application Publication Feb. 3, 2011 Sheet 6 of 14 US 2011/0024.361 A1 416 Eis 410 / 21 | SHHHI 417 it( Ox --I |U t A"458 42 A ?trals A 440 494 433 428 N V (x) -C - FIGURE 5 Patent Application Publication Feb. 3, 2011 Sheet 7 of 14 US 2011/0024.361 A1 LZAHis it FIGURE 6 Patent Application Publication Feb. 3, 2011 Sheet 8 of 14 US 2011/0024.361 A1 FIGURE 7 Patent Application Publication Feb. 3, 2011 Sheet 9 of 14 US 2011/0024.361 A1 715 712 FIGURE 8 Patent Application Publication Feb. 3, 2011 Sheet 10 of 14 US 2011/0024.361 A1 802 811 FIGURE 9 Patent Application Publication Feb. 3, 2011 Sheet 11 of 14 US 2011/0024.361 A1 914 912 FIGURE 10 Patent Application Publication Feb. 3, 2011 Sheet 12 of 14 US 2011/0024.361 A1 1020 1015 1010 / 1008 1007 1017 1009 1020 FIGURE 11 Patent Application Publication Feb. 3, 2011 Sheet 13 of 14 US 2011/0024.361 A1 1120 1115 1110 1100 1108 -1 1101 Y t 1102 P 1104 1130 (g) to 1107 1106 1117 1109 1111 1120 FIGURE 12 Patent Application Publication Feb. 3, 2011 Sheet 14 of 14 US 2011/0024.361 A1 1220 1210 1222 - 1202 1223 - 1224-> 12O7 1225 1211 1227 1228 FIGURE 13 US 2011/0024361 A1 Feb. 3, 2011 AQUEOUSTREATMENT APPARATUS anode and can be thereby oxidized to oxygen gas which can UTILIZING PRECURSORMATERALS AND be removed from the system. As a result, the H+ concentra ULTRASONICS TO GENERATE tion can be enhanced at the anode-water interface so that H+ CUSTOMIZED enriched acidic water can be produced. In a similar manner, at OXDATION-REDUCTION-REACTANT the cathode-water interface, H+ accepts an electron from the CHEMISTRY ENVIRONMENTS IN cathode and can be reduced to hydrogen to form hydrogen gas ELECTROCHEMICAL CELLS AND/OR which can be similarly eliminated from the system so that the SMILAR DEVICES OH-; concentration can be increased at the cathode-water interface whereby OH ; enriched alkaline water can be gen CROSS-REFERENCE TO RELATED erated. Further, when a halogen-containing water (such as, APPLICATIONS natural water containing Sodium chloride oran aqueous solu 0001. This application claims priority to and the benefit of tion of sodium chloride) is subjected to electrolysis, haloge the filing of U.S. Provisional Patent Application Ser. No. nated mixed oxidants are generated in the electrolyzed water. 60/933,228, entitled “AQUEOUSTREATMENT APPARA This process can be further enhanced by adding selective TUS UTILIZING PRECURSOR MATERIALS AND precursor chemical Substances in liquid, gas or solid phase ULTRASONICS TO GENERATE CUSTOMIZED OXIDA upstream of the electrolytic cell so that upon entering the TION-REDUCTION-REACTANT CHEMISTRY ENVI electrolytic cell they are dissociated or re-combined into tai RONMENTS IN ELECTROCHEMICAL CELLS AND/OR lored amounts of specific oxidants, reductants, or reactants. SIMILAR DEVICES.” filed on Jun. 4, 2007, and the specifi Ultrasonic treatment when used in conjunction with electro cation thereof is incorporated herein by reference. chemical cells can enhance the production of hydroxyl radi cals and other oxidants, can keep the cell electrodes free of FIELD OF THE INVENTION carbonate, Sulfate, Sulfide and iron oxide deposits, create a more thorough mixing in the electrochemical Volume being 0002 The present invention relates to the real-time modi treated, reduce the ion boundary layer thickness on each fication and control of the electrochemical production of a electrode, and either create micro- or nano-bubbles for customized blend of mixed oxidants, reactants or reductants increased Surface area and longer life, or to agglomerate using various prepackaged, or bulk precursor chemical com bubbles to enhance flow within the cell. On large water treat pounds: liquids, gases, Solids to generate a unique and cus ment processes electrochemical cells are usually used to treat tomized oxidizing, precipitating, reducing or reactant chem a side stream of the main flow which is then recombined with istry environment both in the electrochemical cell itself and/ the main flow to effect the desired water treatment, or on or electrolytic device, and downstream of the cell/device in an reduced flow systems the full flow can be directed through the adjacent cell/device, or in the water Volume passing through electrochemical cell(s) for treatment. the cell/device, or water reservoir to be treated, in both quan 0024 Water quality can be defined by measuring the con tity and concentration greater than that which could be pro centrations of oxidants, total hardness, total dissolved solids, duced via current industry electrochemical/electrolytic pro total dissolved organics, chemical oxygen demand (COD) cesses and practice. biological oxygen demand (BOD), specific contaminants Such as heavy metals, pharmaceuticals and/or pathogens, BACKGROUND OF THE INVENTION industrial compounds, hormones and other endocrine com 0003. The following references disclose use of electro pounds, dissolved oxygen, conductivity, oxidation-reduction chemical cells: potential (ORP), streaming current potential, and turbidity of 0004 U.S. Pat. No. 5,932,171 the water. 0005 U.S. Pat. No. 4,481,086 0025 Drinking water supplies are commonly disinfected 0006 U.S. Pat. No. 4,434,629 with an oxidizer like chlorine. However the organics in the 0007 U.S. Pat. No. 4,493,760 raw water mix with the chlorine used for disinfection to create 0008 U.S. Pat. No. 4,402,197 cancer-causing agents like trihalomethanes (THMs) and 0009 U.S. Pat. No. 5,250,160 haloacetic acids (HAAS). Drinking water and wastewater 0010 U.S. Pat. No. 5,534,120 treatment plants may use on-site electrolytic generators to 0011 U.S. Pat. No. 5,865,966 produce the chlorine used for disinfection and/or ultraviolet 0012 U.S. Pat. No. 5,947,135 light for disinfection and/or as part of an advanced oxidation 0013 U.S. Pat. No. 6,814,877 B2 system for targeted organics destruction. By minimizing the 0014) JP Application No. 10057297A organic content of the water it is possible to reduce the THM/ 0.015 JP Application No. 10179489A HAA production and create a better quality water Supply. 0016 JP Application No. 0074975 A1 Swimming pools, spas, water features such as ornamental 0017 JP Application No. 0023227A1 fountains and the like are commonly sanitized using either 0018 JP Application No. 10033448A electrolytic chlorination with/without an ultraviolet light 0019 JP Patent No. 09122060 clarifier, or OZonation. Each of these technologies has its own 0020 JP Patent No. 2000116587 distinct advantages and disadvantages. 0021 JP Patent No. 10178491 0026 Conventional apparatus used to sanitize water in 0022 EP Application No. 0983.806A1 pools and the like, includes electrolytic chlorination systems, 0023 Electrochemical cells for use in water/wastewater or “salt' chlorination systems. These systems utilize an elec treatment systems are designed to operate by making use of trolytic cell or “Chlor-alkali' cell, typically comprising a the water electrolysis process wherein, at the anode-water Submerged positively charged anode, a negatively charged interface, OH ; being present in water due to electrolytic cathode, and an electrical energy source for applying a cur dissociation of water molecules donates an electron to the rent across the gap between the anode and cathode. The anode US 2011/0024361 A1 Feb. 3, 2011 compartment contains an anolyte including a source of chlo 0031.