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To answer your questions: * This is a battery manufacturing plant. My focus is on quality control of incoming and process acid, but the RO water is what is used to dilute the concentrated acid. We have an outside vendor that monitors and services the RO system. * The feed water/raw water is...

Feed/raw water pH has consistently been 9.2-9.4, conductivity 250-300 microS/cm.

Recently experiencing high pH in plant RO water system. Normally pH runs 6.5-6.8 range, for past several weeks around 9-9.2. Conductivity normal, about 15 microS/cm. We also test for Cl and NO3, those both normal as well. Any thoughts on what would be causing pH to go high?

Anyone have a suggestion on where to find critical properties (Tc, Pc, Vc, Zc) and acentric factor for dibenzothiophene (C12H8S, CAS # 132-65-0)? Already tried NIST, Perry's, CRC Handbook, Lange's, Knovel, Yaws, as well as a general internet search. Don't have access to DIPPR.

Have you considered briquetting? The economics would not be as favorable as pelletizing but the pellets/briquettes would be stronger depending on the binder used. If the coal is hydrophilic water would not be a good binder, but I have seen that a little molasses solution (which is sold as an...