The aluminum concentration and Ryznar Index increased and the pH decreased in a small Appalachian water supply reservoir following acid precipitation runoff episodes. Concomitant increases in tapwater aluminum and decreases in tapwater pH were also observed at two homes in the water distribution system. Lead concentrations in the tapwater of one home frequently exceeded recommended levels, alth...

the equilibrium solubility data of co2 in the various aqueous blends of triisopropanolamine (tipa) + monoethanolamine (mea) with the total alkanolamine concentration of 2 mole / dm3 were measured at the temperatures of 30, 40, 50, 60 and 70 oc and co2 partial pressures below 100 kpa. the experiments were done in an atmospheric gas absorption system and the amount of absorbed co2 was measured wi...

Fretting corrosion is a form of accelerated atmospheric oxidation which occurs at the interface of contacting materials undergoing slight, cyclic relative motion. In electric contacts involving non-noble metals, fretting action can cause rapid increases in contact resistance, proceeding to virtual open circuits in a matter of minutes in the worst cases. Experimental results of resistance increa...

China has the largest and most complex power grid in world. But at same time, is also facing severe challenges from natural environment, so its security reliability are particularly important. In this paper, Q235 carbon steel was used for exposure test. 81 experimental sites were set up five cities of Southern Hebei Province. And data two years collected sorted out, map atmospheric corrosion gr...

• Increased ingress at cracks in 25 years old marine concrete. Severe corrosion connection with plastic spacers, none or negligible cracks. Corrosion the “weakest link” appears to protect remaining steel. The state of three pre-cracked concrete beams was investigated after exposure (atmospheric, tidal and submerged). influence inadequate spacers found overrule possible impact bending on reinfor...