{'fraction_non_alphanumeric': 0.011834319526627219, 'fraction_numerical': 0.005917159763313609, 'mean_word_length': 4.747572815533981, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Enhancement of Biogas Production from Predigested Substrate by Human Urine under Different Thermal Condition

The biogas production from the cabbage waste and the tea waste was studied by changing the temperature and adding human urine as enhancer. The gas production fits the first order kinetics well. The cabbage waste was used to find the suitable expression of first order reaction rate constant as a function of temperature. It has been observed that, the Arrhenius equation gives the best fit to the experimentally determined first order kinetic rate constant values over the equations proposed by collision theory or transition state theory. The effect of human urine on the biogas production from tea waste was studied in detail. The rate of gas production is seen to be enhanced at 150 ml urine volume. The gas production rate was seen to be enhanced as the temperature was increased to the mesophilic zone from the psychrophilic zone (25 o C). Beyond 41 o C, the gas production rate decreased. The reaction rate constant is expressed as a function of the urine volume and the temperature. An equation for reaction rate is developed in terms of human urine and temperature.