In this study, we developed a lime addition-capacitive deionization (CDI) hybrid process that can efficiently remove acetic acid and sulfuric acid from the model mixture of glucose, xylose, acetic acid, and sulfuric acid, which are the major components from the biomass hydrolyzate by acid hydrolysis. The key parameters of lime addition process (type of lime, amount of lime, stirrer speed, reaction time) and CDI process (voltage, flow rate, feed concentration) were also optimized. In the lime addition process, the optimal lime type, acids(sulfuric acid and acetic acid)/lime molar ratio, stirrer speed, and reaction time for removal of sulfuric acid were CaCO3, 1:1, 200 rpm, and 6 min, respectively. For the CDI process, the optimal voltage and flow rate were 1.2 V and 20 mL/min. The efficiency of acid removal increased as the initial acetic acid concentration decreased. The developed hybrid process was able to remove 98.08% of sulfuric acid and 76.97% of acetic acid from the mixture of glucose, xylose, acetic acid, and sulfuric acid. It was able to recover most of the sugar (>99%) at high purity (97.53%).
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동