The Treatment Of Furfural Wastewater By Anaerobic Microbe

This study is main on the use of pretreated wastewater start of furfural UASB reactor, and using acclimated sludge to handle the kinds of high-rate anaerobic wastewater sludge. We use VC pharmaceutical wastewater treatment acid hydrolysis as anaerobic sludge used for vaccination. Though the inoculation sludge activity is not high, but after 107 days of training, we still had domesticated high-rate anaerobic wastewater sludge successfully.Experimental domestication of this process consists of 10 stages. Each stage of furfural wastewater influent concentration or COD concentrations is increasing. Whenever the phase of furfural wastewater COD removal rate is over 80%, it will progress next stage of acclimation. Taking into account so that the reactor had adequate anaerobic degradation of organic matter, The initial influent COD concentration is set at 5,000 mg/L , and we can add biodegradable glucose to the initial acclimation. After using glucose, we gradually reduce the dosage of the ways in which microbial degradation gradually adapt to furfural wastewater. At the previous three stages, we maintain unchanged the influent concentration. The furfural wastewater influent is increasing from the ratio of 50% to 90%. After 32 days of cultivation, the reactor anaerobic microorganisms has been successfully adapted to the degradation of furfural wastewater, which COD removal from the initial 47.8% to 84.5%. The last six domesticated stage, no longer adding glucose, but continuously improve the COD in the influent concentration. We use Water dilution methods to improve wastewater influent furfural. The percentage each stage of acclimation influent COD concentration increase by 1,000mg/L, so that the influent COD concentration from 5707.7 mg/L to 11,270 mg/L. Experienced 50 days of training, the COD removal rate reached 80.2%. Finally an acclimation phase is to enhance the removal of COD, and increase the influent concentration to the pretreated wastewater COD furfural. Experienced 25 days of acclimation, when COD in the influent concentration is 13,208 mg/L, the effluent COD is 1153mg/L. The removal rate reached 91.3%. During the 107 days, we trained wastewater sludge successfully to deal with furfural efficient anaerobic wastewater sludge.Domesticated in the process, the study also inspected the influent pH on the UASB reactor wastewater treatment. The results showed that when the effluent pH certain circumstances, the influent pH with the ongoing domesticated gradually reduced, finally reduced to 4.3. Such a low pH value can guarantee that the water is still higher COD removal, which shows domesticated UASB reactor is very suitable for wastewater treatment furfural. It can greatly enhance the reduction of the Reduce the amount of alkali, and reduce operating wastewater costs.During stable operation week, the reaction of the basic load volume reached 3.94 kgCOD/d ? m3, COD in the influent 13100mg/L,and at the same time COD removal can guarantee 91%. Acid from the water with NaOH titration is not detected. Because of adding benefit of anaerobic microorganisms, especially MPB growth elements Fe, Co, Ni, Zn, the reactor produce larger gas. The average removal of COD 1000 can produce on gas 2.2L around. The average effluent water BOD5 can be 456.6mg/L, and the BOD5 removal rate could reach 95%.If the reactor effluent has been treated through the bio-contact oxidation process, they can be reached stable discharge sdandard. This process run simple to make full use of the characteristics of wastewater. This process also increased the degree of wastewater resources. The Process obviously is, after all, an efficient economy furfural wastewater treatment process .It also revealed the application of good prospects.