Granular Activated Carbon GAC

Which Chemicals Will Granular Activated Carbon (GAC) Adsorb?  A Quick Reference Guide.

I get asked all the time about specific chemicals and the probability of being adsorbed by Granular Activated Carbon.   Below is a quick reference guide.   Always ask your carbon supplier for the GAC Adsorption  isotherm for the chemical you want to remove.  The GAC Isotherm will show you the mg of chemical adsorbed per mg of GAC at constant temperature.   Also, bench scale testing is important as certain adsorption rates are affected by pH, soaps and by the presence of Chelating Compounds such as EDTA. Group 1: Chemicals readily adsorbed by Granular Activated Carbon (GAC) GAC commonly used to remove ... » Read More

Waste Water Treatability Testing with Clay Based Flocculants

A printing company in the Dallas area had a wastewater problem. The city of Dallas does not allow dye or inks that discolor the waste water and issued a Notice of Violation stating that the waste water must be pre-treated before discharge to the sewer or to stop the discharge. The company stopped the discharge and began to have waste water hauled off site for disposal. At the same time an internet search for treating options was conducted. Wilson Environmental was contacted and we offered to do a free treatability test. Our treatability test is simply a yes or no ... » Read More

Using Organo Clay in Disposable Filter Drums

Organo Clay is a Good Temporary Solution If you need a temporary way to treat your waste waters for a few days or a week during routine cleaning or maintenance and continue to meet your pre-treatment discharge requirements, you might want to consider using a disposable Filter Drum containing organo clay. Disposable Organo Clay Filter Drums Disposable organo clay filter drums are typically 55 gallon drums filled with organo clay or blend of organo clay and filter coal or sand. Organo clay has a strong affinity for hydrocarbons such as oil and grease and is capable of absorbing from 20 ... » Read More

Package Plants for RV Parks and New Home Developments in Texas

Planning to build homes or an RV Park on your property? Don’t have access to city sewer? Better check out the state permit requirements for your planned development first. Sewage treatment for RV parks or residential developments in Texas is explained below. A permit known as a TPDES (Texas Pollutant Discharge Elimination System) Permit is required to discharge any treated waste water or treated sewage to any body of water in the state of Texas. That includes rivers, lakes, streams and even dry creeks. The permitting process is a two-step process. Step 1 Step 1 is to request what is ... » Read More