Abstract: The present invention relates to a method for sludge safe disposal and resource recovery through sludge liquefaction and stratification. The method is to completely liquefy the organic matters in the sludge into soluble organic matters through a thermal-alkaline synergistic treatment. After the treatment, the sludge is stratified, and an anaerobic digestion is performed on a high-concentration soluble liquid of an upper layer to convert organic carbon, nitrogen and phosphorus into biogas, ammonia nitrogen and phosphate, a crude protein recovery is performed on a sludge protein of a middle layer, and a dewatering and a landfill on a sludge inorganic solid of a lower layer.

Abstract: The present invention relates to a method for sludge safe disposal and resource recovery through sludge liquefaction and stratification. The method is to completely liquefy the organic matters in the sludge into soluble organic matters through a thermal-alkaline synergistic treatment. After the treatment, the sludge is stratified, and an anaerobic digestion is performed on a high-concentration soluble liquid of an upper layer to convert organic carbon, nitrogen and phosphorus into biogas, ammonia nitrogen and phosphate, a crude protein recovery is performed on a sludge protein of a middle layer, and a dewatering and a landfill on a sludge inorganic solid of a lower layer.

Abstract: A mobile terminal and a ringtone playing method thereof are provided. The playing method includes: selecting a music file which to be set as a ringtone, and popping up a playing preview interface corresponding to the music film and, meanwhile, playing the music file; sliding a cursor of the playing preview interface to select a start position and a playing end position on a playing progress bar corresponding to the music file so as to acquire and save playing information of the ringtone, wherein the playing information comprises a playing start time point and a playing end time point of the ringtone; and in response to occurrence of a ringing event, reading the saved playing information of the ringtone and playing a music clip between the playing start time point and the playing end time point.

Abstract: A mobile terminal and a ringtone playing method thereof are provided. The playing method includes: selecting a music file which is to be set as a ringtone, and popping up a playing preview interface corresponding to the music file and, meanwhile, playing the music file; sliding a cursor of the playing preview interface to select a playing start position and a playing end position on a playing progress bar corresponding to the music file so as to acquire and save playing information of the ringtone, wherein the playing information comprises a playing start time point and a playing end time point of the ringtone; and in response to occurrence of a ringing event, reading the saved playing information of the ringtone and playing a music clip between the playing start time point and the playing end time point.