Related by context. Frequent words. (Click for all words.) 63 fracking fluid 62 frac fluid 58 sorbent 58 sorbents 57 proppant 57 potassium hydroxide 55 fracking fluids 54 flowback 54 adsorbent 54 reinjection 54 microfiltration 54 drilling fluids 53 hexane 53 fracing 53 kerogen 53 slurry 52 petroleum distillates 52 reactants 52 solvents 52 hydrocracking 51 brine 51 chlorinated solvents 51 hydrofluoric acid 51 absorbent materials 51 impurities 51 frac 51 solids 50 isopropyl alcohol 50 chemical additives 50 fluorinated 50 slurries 50 ethyl acetate 50 additives 50 fracs 50 hydraulic fracturing 50 lubricating oils 50 absorbents 50 viscosities 49 dissolved solids 49 polymeric materials 49 organic solvents 49 sodium hypochlorite 49 chlorine dioxide 49 groundwater remediation 49 polyol 49 chlorides 49 bioremediation 49 ionic liquids 49 carbon tetrachloride 49 bentonite 49 zeolites 48 mixtures 48 glycerol 48 polluted groundwater 48 degassing 48 additive 48 liquids 48 surfactant 48 hydrocarbons 48 Hydrogen Peroxide 48 combustor 48 frac sand 48 disinfection byproducts 48 superheated steam 48 glycol 48 gaseous fuels 48 water soluble 48 wellbores 48 H2S 47 amine 47 hydraulic fluids 47 centrifugation 47 membrane filtration 47 xylene 47 sumps 47 additive MTBE 47 hydrates 47 aqueous solution 47 zeolite 47 Bromine 47 Fischer Tropsch 47 emulsion 47 butyl 47 hydrocarbon 47 propane butane 47 silane 47 sodium carbonate 47 fracking 47 emulsions 47 fuel injector 47 surfactants 47 biocide 47 alkyl 47 wellbore 47 Solids 46 fluoropolymer 46 isobutanol 46 separator 46 olefin 46 remove impurities 46 bio remediation