| Diosgenin industry is a new industry that based on the success of planting of Dioscorea zingiberensis. However, the wastewater from diosgenin industry is of high concentration, the wastewater which has badly polluted the surrounding water body especially the water of Danjiangkou Reservoir (the headstream of the project of transferring water from southern to northern). The application of diosgenin SMRH clean production process makes the biggest sources of water pollution of liquid hydrolysis from diosgenin production eliminated basically, which is compared with traditional diosgenin production process, the wastewater volume from offline of the production line and COD concentration were significantly sharply reduced, but it is still a high concentration and refractory organic wastewater.The pollution of turmeric Industry on the upper reaches of Hanjiang River has become the focus, which is concerned by leadership at all levels and the general public, and research on diosgenin wastewater treatment technology has become the current hot spot. If the problem is resolved, we can not only safeguard the benefit of Dioscorea zingiberensis farmers and the investors and employees of diosgenin factory, but also protect the water quality of Danjiangkou Reservoir against being contaminated by diosgenin wastewater, in addition, it will provide technique references for treating of wastewater which contains high concentration of Chloride-ion and organic pollutants.This paper mainly researched into anaerobic treatment technology of the Diosgenin-Alcohol integrated wastewater, what is treating synthetic wastewater under using the method of the addition of improved UASB reactor in packing layer between the anaerobic sludge bed and three-phase separator. Analyzing the nature of integrated wastewater, then researching the removal of the SO42- the physical and chemical in comprehensive wastewater, and having a systematic study on the starting and running of modified UASB reactor, but also the influence of SO42- on the modified UASB reactor Operation.Main results are as follows:1. Using the method of lime and CaCl2, that is adding lime to remove SO42- to a certain degree at first, then adding CaCl2 to the further removal, average total removal rate of SO42- reaches 68.0%, the reagent volume is 1.74 (the quality ratio of CaO-CaCl2 and SO42-), reaction time is about 40min. The method of BaCO3 in SO42- removal rate is slightly higher 8% than the method of lime and CaCl2, but the reagent volume is relatively large, long reaction time, and the reaction for which to keep mixed need. Take into consideration of economic, practical application and other factors, the SO42- removal method in identified integrated wastewater is the method of lime and CaCl2 in this study.2. The comprehensive wastewater treatment directly started the improved UASB reactor of seeding sludge in order to acidify sludge in a Shiyan company, it was successful. The entire boot process is divided into six stages, lasting 75 days; running to 49 days, granular sludge appeared, particle size is about 2mm; reactor influent COD concentration is up to 15128mg/L, volume loaded 3.24kgCOD/m3·d time, at the moment,COD average removal rate is 83.6%. Modified UASB reactor was running in the medium temperature conditions, the temperature was 38℃. The way of heating-up was gradual warming way in the start process, warming up 2℃every one day, remaining unchanged until after 38℃, making micro-organisms gradually adapt to the environment temperature, which is conducive to a smooth start of UASB. Water penetration way is intermittent water penetration, twice a day, inletting volume is 6L/d. At first we increased water penetration COD to a certain concentration gradually, waiting for the reactor to be run for some time, after COD removal rate got stable, then increased concentration, stably operated for some time, so is the cycle, gradually increased the load to start stage reactor. Start results show that the approach taken by the start is scientific and rational.3. The pH value had a very significant impact on the normal operation of the UASB reactor, however, showed the lag of some impact. When the pH value is less than 6.0, the reactor does not work, COD removal rate decreased rapidly to 20%, and water is turbid; when the pH value adjusted to 7.0, COD removal rate had a larger increase, reaching 63.5%; when continuing to improve the pH value to 8.5, the COD removal rate of reactor was restored to normal level, reaching 81.2%, also returned to clean water; when improving the pH value to 9.0, the reactor rate began to decline.4. It is very difficult to restore the UASB reactor after acidification; we can take to reduce the amount of water penetration, adding CaCO3 and NaHCO3 to recover the method of increase pH value in the reactors and alkalinity gradually. Temperature drops will be a significant impact on anaerobic activity, and in the same temperature range, the higher the original temperature is, the greater the decline is in gas production.5. It was a success to use the way of increase the COD concentration and amount of water penetration, and start industrial UASB reactor of 240m3/d. When reactor water penetration COD concentration is 9600mg/L, volumetric loading is 3.42kgCOD/m3·d, COD average removal rate could reach 75%.6. When the concentration of water penetration SO42- is 1000mg/L, COD removal rate reached a peak value; then with the SO42- concentration increased, COD removal rate started to decline, when the concentration of water penetration SO42- is 2500mg/L, this is a low peak value; when the SO42- concentration is between the 3000mg/L and 4000mg/L, COD removal rate reached the second peak value, the average removal rate is up to 85.0%; when the concentration of water penetration is up to 5000～8000mg/L, the COD removal rate dropped drastically.7. When the concentration of water penetration SO42- was below 4000mg/L, increasing SO42- concentration had small impact on water penetration VFA, and also has little effect on normal operation of the reactor; When the concentration of SO42- is more than 4000mg/L, the production efficiency of methane decreased rapidly, leading to balance of acid-methane production in reactor is destroyed, resulting the accumulation of a large number of VFA, and the water penetration VFA concentration increased rapidly.8. When the concentration of water penetration SO42- is less than 4000mg/L, Increasing its concentration showed some functions in promoting on active sludge than methane activity, and which was increasing with the increase of the SO42- concentration, when SO42- concentration is between 3000mg/L and 4000mg/L, the functions of promoting is the largest; when SO42-concentration is greater than 4000mg/L, SO42- produced inhibition on the SMA quickly, SMA value dropped to less than half the original level, and the inhibition increased rapidly with increasing concentration.
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