Sewage sludge, breakdown

The methacrylates ate slightly to essentially nontoxic to fish and other aquatic species. Hydrolysis data suggest rapid breakdown at alkaline conditions, and studies show that MMA is ultimately biodegradable ia sewage sludge samples. Based on this information, the methacrylates ate not considered to be a significant environmental hazard. 

This work, however, did not completely eliminate the controversy over the toxicity of volatile acids. Subsequently, Buswell and Morgan 20) reported that propionic rather than acetic acid was toxic to the methane bacteria. McCarty et al. (9) investigated the effect of various volatile acids on methane bacteria in order to clear up this controversy. They added 6000 mg/liter of acetic, propionic, and butyric acid (the three most common acids produced during anaerobic breakdown of complex substances) individually to laboratory scale sewage sludge digesters. Prior... 

Hoechst. The year 1995 saw a total waste production of 324 0001, comprising 72 4001 of household-type waste, 138 3001 of sewage sludge, and 113 3001 of special and hazardous wastes. Figure 127 gives a breakdown by these same three waste... 

Carter J, Angel S, Lawrence-Snyder M et al (2005) Standoff detection of high explosive materials at 50 meters in ambient conditions using small Raman instrument. Appl Spectrosc 59 769-775 Ferreira EC, Milori D, Ferreira EJ et al (2011) Evaluation of laser induced breakdown spectroscopy for multielemental determination in soils under sewage sludge conditions. Talanta... 

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