in an attempt ot develop a one step process for the removal of h2s from sour gas, the engineering consideration were dealt with in two steps. in the first step it was attempted to derive the data required for establishing the design criteria for a pilot plant, by experimenting with a small bench scale.

During incineration of wastes in waste incineration plants, polluted flue gases are generated which have to be subjected to flue gas purification. Although the legal requirements are nearly unambiguous, the question of whether wet flue gas purification is to be performed in a sewage-free or sewage-generating manner is discussed controversially by experts in the Federal Republic of Germany. As a...

ABSTRACT It is known that various plants have purification ability for indoor air pollutants. In this paper the purification mechanism of foliage plant was investigated by analyzing bioelectrical potential. It was first shown that the air purification ability of a plant depends on various environmental conditions, especially on light irradiation. It was then clarified that the bioelectrical pot...

Vacuum and gas purification: The detector is mounted inside an approximately 10 m vacuum chamber, which contains P10 under measurement conditions. Therefore the maximum reachable vacuum can be used as an estimate for the leakage rate of the chamber and gas quality. After severe changes to the prevacuum system, leak-testing is currently in progress. Standalone tests of the gas purification syste...

Water and air pollutants have huge impacts on the entire living system. In addition, the newly emerging nanopollutants, increasing global warming, and consequent climate changes are posing major threats to the freshwater or fresh air availability. This has made it urgent to invent an appropriate water/air treatment technology that removes nanopollutants and also desalinates water to a significa...

For adsorbents used in water remediation, the long-standing contradictions between selectivity and multiple adsorbability, and affinity and recyclability, have led to difficulties in applications towards environmental crises. In article number 1500289, Q. Yuan and co-workers create a versatile scavenger that cleverly avoids such contradictions by integrating the advantages of multiple functiona...

A simple, convenient, reusable, and inexpensive airand water-purification unit including a one-end sealed porous amorphous-silica (a-silica) tube coated with TiO2 photocatalyst layers has been developed. The porous a-silica layers were formed through outside vapor deposition (OVD). TiO2 photocatalyst layers were formed through impregnation and calcination onto a-silica layers. The resulting por...