NOVELTY - Biochemically treating wastewater produced from 1,3-propanediol fermentation microorganisms comprises: (a) carrying out fermentation microorganisms auto-thermal thermophilic aerobic digestion treatment; (b) carrying out anaerobic digestion treatment; and (c) carrying out alternating anaerobic-aerobic treatment.    USE - The process is useful for biochemically treating wastewater produced from 1,3-propanediol fermentation microorganisms (claimed).    ADVANTAGE - The process achieves the safe discharge and provides a new path for degrading the wastewater produced from 1,3-propanediol fermentation microorganisms.    DETAILED DESCRIPTION - Biochemically treating wastewater produced from 1,3-propanediol fermentation microorganisms comprises: (a) carrying out fermentation microorganisms auto-thermal thermophilic aerobic digestion treatment; culturing and acclimating the thermophile bacteria; adding 4-6 g/L of digested sludge in the digestion tank to the fermentation microorganisms auto-thermal thermophilic aerobic digestion reactor which is equipped with the water bath, adding 4 L of sludge in the domestic sewage primary settling tank for culturing to the reaction tank, regulating total concentration of the sludge to be 6-10 g/L, continuously aerating in the reaction tank under conditions that concentration of volatile suspended solid is at least 2.5 g/L, the stirring rate is 100-300 rotations/minute, the dissolved oxygen is 0.2-0.9 mg/L; and pH is 7-8; obtaining active sludge flocculating substance after aerating at 15-25 degrees C for one week; warming temperature of the reactor to 45-65 degrees C by the heat generated by degrading volatile suspended solid with microorganisms; culturing stable Thermotogales thermophile bacteria adapted to the reaction after two periods; ending the culturing of the thermophile bacteria; acclimating the thermophile bacteria by primarily settled sludge and 1,3-propanediol fermentation microorganisms from the concentrating tank, increasing the wastewater of 1,3-propanediol fermentation microorganisms according to the improvement of degradation ability of 1,3-propanediol fermentation microorganisms in the reaction tank; detecting the effluent, if the removal rate of total solid suspension and the volatile suspended solid reach 60%, sending to the next operation till the concentration of the total solid suspension and the volatile suspended solid reach full load and the degradation are stable, ending the domestication of the thermophile bacteria; where in the formal experiment the total suspended solid of 1,3-propanediol fermentation microorganisms is 4.4-19.1 g/L, volatile suspended solid is 3.3-11.5 g/L, and concentration of the thermophile bacteria is 4-6 g/L; warming the reaction temperature to 50-65 degrees C from normal temperature, performing fermentation microorganisms automatic heat and degradation reaction on the 1,3-propanediol fermentation microorganisms, sending the effluent to the anaerobic digestion reactor to carry out the next degradation treatment when the detected removal rate of the total solid suspension and the volatile suspended solid in the effluent are 60%; (b) carrying out anaerobic digestion treatment: when culturing and acclimating thermophile bacteria in the auto-thermal thermophilic aerobic digestion reactor, culturing and acclimating anaerobic activated sludge in the anaerobic digestion reactor; taking the anaerobic sludge as inoculating sludge; loading 60 g of dewatered anaerobic sludge with 70% of water and 4.5 L of tap water; making the concentration of the diluted anaerobic sludge be 4 g/L; adding rice-washing water, regulating initial chemical oxygen demand (CODcr) concentration to be 3000-4000 mg/L; where the ratio of CODcr, nitrogen (N), and phosphorus (P) is 200:5:1; complementing insufficient nitrogen and phosphorus according to a certain proportion; where the nitrogen is from potassium nitrate and the phosphorus is from sodium dihydrogen phosphate; mixing with upper clear waste liquid produced by 3-propanediol product; during the culturing and acclimating process, complementing insufficient nitrogen and phosphorus according to ratio of CODcr, N, and P is 200:5:1; and complementing alkali degree of the wastewater; where based on calcium cabonate (CaCO3), the alkali degree is 2500 mg/L; warming temperature by water bath and maintaining the temperature during the whole process; warming temperature from the room temperature, warming 1 degrees C every hour from 25 degrees C until the temperature becomes 34.5 degrees C; during the culturing and acclimating process, adopting the method that water is fed and discharged intermittently, changing water every 24 hours; detecting the discharged water; finishing the culturing and acclimating of the anaerobic sludge; mixing 10-30 pts.wt. of waste liquid by mass treated by the fermentation microorganisms auto-thermal thermophilic aerobic digestion and 70-90 pts.wt. of wastewater produced by 3-propanediol product; sending the mixture to the anaerobic nitrification reactor to carry out further degrading at 30-60 degrees C; collecting the biogas produced during the process by the biogas cabinet and sending the biogas to the user; sending the discharged water to the next alternating A/O system to carry out treating; and (c) carrying out alternating anaerobic-aerobic treatment: when culturing and acclimating thermophile bacteria in the auto-thermal thermophilic aerobic digestion reactor, culturing and acclimating anaerobic activated sludge in the upflow anaerobic digestion reactor, and culturing and acclimating anaerobic activated sludge in the alternating A/O tank; adopting the method that water is fed and discharged intermittently; setting the reaction temperature to be 30 degrees C; continuously aerating and culturing the sludge for 7-8 days until that active sludge flocculating substance appears; and feeding and discharging water at one time every day; and feeding the water; continuously carrying out aerating and increasing NH3-N and CODcr concentration of the fed water until that the treatment capability of the active sludge arrives at load; using tap water and mixed liquid from the anaerobic digestion reactor to acclimate the sludge; gradually increasing wastewater treated by the anaerobic digestion reactor; detecting CODcr in every discharged water; when CODcr and NH3-N removal rate arrives at 60%; carrying out the next feeding until the CODcr and NH3-N concentration arrives at the load and stable degradation; and finishing the acclimating of the active sludge; where the culturing and acclimating time is 45 days.    DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram of the process for biochemically treating wastewater produced from 1,3-propanediol fermentation microorganisms (Drawing includes non-English language text).