An industrial facility used an open paved storage yard to stage polychlorinated biphenyl-containing transformers removed from its facilities for 30 years.

An industrial facility used an open paved storage yard to stage Polychlorinated biphenyl (PCB)-containing transformers removed from its facilities for 30 years. The yard is bounded by workshops on the north, highway 32 on the west, a creek on east and south. Several leaks and spills in the storage yard have been documented by an environmental audit. Could you help me identify and explain possible fate and transport pathways and where PCBs might end up at the site, based on a general discussion of physical and chemical properties of PCBs.

Calculating amount of H3PO4 to reduce pH of wastewater

Wastewater flow is 1.5 million gallons per day. The pH of the incoming wastewater is 5.2 The desire is to use 30% H3PO4 to reduce the pH of the wastewater to pH 2.5. How would I calculate the amount of 30% H3PO4 needed to accomplish this pH change for the 1.5 MGD wastewater flow??? Please show me your calculations.

Neutralization

How much of a 0.95 M potassium hydroxide solution do you need to neutralize 39.69 ml of a 0.825 M phosphoric acid solution? (in liter)

Computing the equilibrium constant Kc

Consider the equilibrium: 2 A + B <----> 2 C You prepare a mixture with initial concentrations [A]0 = 0.03 mol/L, [B]0 = 0.023 mol/L, and [C]0 = 0. You wait until the mixture reaches equilibrium, and then you measure the concentration of C: [C]eq = 0.013 mol/L. From your experiment compute the equilibrium constant Kc of the reaction.

Chromium, MTBE, and Sulfate

What are two health effects and two commonly used treatment technologies for 1. Chromium 2. MTBE 3. Sulfate? Chromium: Health effects 1. 2. Treatment Technologies 1. 2. MTBE Health effects 1. 2. Treatment Technologies 1. 2. Sulfate Health effects 1. 2. Treatment Technologies 1. 2.