Introduction Conclusions References

Introduction: The survivability of carbonaceous compounds during hypervelocity impacts has particular importance in exobiology, astrobiology, and origin of life studies. The delivery of biotic organics such as amino acids, which are found in meteorites [1], during impact is an important hypothesis for the source of life's early organics [2]. Furthermore, trapping or preservation of target organ...

This chapter describes the methodology used in EPA's Waste Reduction Model (WARM) to estimate streamlined life-cycle greenhouse gas (GHG) emission factors for yard trimmings and food scraps beginning at the point of waste generation. The WARM GHG emission factors are used to compare the net emissions associated with these two organic material types in the following three materials management op...

Removal of pesticides from membrane system concentrates is studied. Our aim was to obtain a concentrate composition similar to its source by removing mainly the pesticides and natur al organic matter by 75 to 85%. Conventional processes used for surface water treatment; i.e. oxidation by ozone, adsorption and clarification, were tested for this purpose. Several experiments, using batch systems ...

Cloud droplet activation and surface tension of mixtures of slightly soluble organics and inorganic salt S. Henning, T. Rosenørn, B. D’Anna, A. A. Gola , B. Svenningsson, and M. Bilde Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark Department of Chemistry, University of Oslo, N-0315 Oslo, Norway Department of Physical Chemistry, Medical Uni...

to day, the activated carbon is being used to treat the industrial and domestic wastewaters. the suitability of activated carbon for treatment of industrial wastewaters can be quickly predicted by consideration of wastewater characteristics. the results of this paper represent a first step in determining suitability of activated carbon for treatment of wastewaters or effluent of treatment plant...

Stabilized landfill leachate contains a wide variety of highly concentrated non-biodegradable organics, which are extremely toxic to the environment. Though numerous techniques have been developed for treatment, advanced membrane filtration is one most environmentally friendly methods purify wastewater effectively. In current study, novel polymeric was produced by integrating powdered activated...

Water reclamation plants frequently utilise reverse osmosis (RO), generating a concentrated reject stream as a by-product. The concentrate stream contains salts, and dissolved organic compounds, which are recalcitrant to biological treatment, and may have an environmental impact due to colour and embedded nitrogen. In this study, we characterise organic compounds in RO concentrates (ROC) and tr...