PUBLISHED WORK
[VN TRANSLATION]
HỢP TÁC CÙNG VI SINH VẬT
CẨM NANG NHÀ NÔNG VỀ LƯỚI THỨC ĂN TRONG ĐẤT
Dịch bởi Lá Library và các tình nguyện viên theo nguyên bản Tiếng Anh “Teaming with microbes. The organic gardeners’ guide to the soil food web. Revised edition. 2010”. Bản dịch này không dùng để bán, và chỉ dùng trong mục đích giáo dục của các thành viên Lá Library. Bản dịch này chỉ phát hành dưới dạng PDF mà không phát hành dưới bất kỳ định dạng nào khác.
HOME COMPOSTING HANDBOOK - VIETNAMESE
Sổ tay hướng dẫn tái chế rác hữu cơ tại nguồn - Nguyên lý cơ bản và các phương pháp sản xuất phân bón hữu cơ và các chế phẩm sinh học từ rác hữu cơ tại gia đình và cộng đồng
A LITTLE BREATH OF FRESH AIR INTO AN ANAEROBIC SYSTEM: HOW MICROAERATION FACILITATES ANAEROBIC DIGESTION PROCESS
This review published in Journal of Biotechnology Advances critically examines microaeration-based AD processes through our recent
understandings of the effect of oxygen on microbial community structure, enzymatic, energetic, physiological,
and biochemical aspects of the microbial-mediated process.
TO BREATH OR NOT TO BREATH:
AERATION IN ANAEROBIC PROCESS
This is a brief video explanation of my Ph.D. research
POSTER PRESENTATION: AUTOMATED MICRO-AERATION SYSTEM FOR ENHANCING THE PROCESS STABILITY OF ANAEROBIC DIGESTION AT HIGH ORGANIC LOADING RATES
Anaerobic digestion (AD) has been widely applied for bioenergy production from diverse organic feedstocks. The AD process, however, is susceptible to failure, especially at high organic loading rates (OLRs) due to accumulation of volatile fatty acids (VFAs). This research developed and validated the performance of an automated oxidation-reduction potential (ORP) control-based micro-aeration system to enhance the process stability of AD system under high organic loading conditions. Once ORP-based micro-aeration control was introduced every other day, the total VFA concentration declined promptly to low concentration and sustained digestion performance without supplementation of alkalinity. 16S rRNA gene sequence analyses revealed that micro-aeration promoted microbial structure shift to maintain stable digestion performance. To the best of our knowledge, this is the first attempt to implement the ORP control as an effective strategy for the recovery of an unstable AD system at a high OLR as well as a long-term system stability.
ANAEROBIC BIOREFINERY: CURRENT STATUS, CHALLENGES, AND OPPORTUNITIES
Biorefineries are such concepts, where multiple products including chemicals, fuels, polymers etc. are produced from organic feedstocks. The anaerobic biorefinery concept is now gaining increased attention, utilizing AD as the final disposal step. This review aims at evaluating the potential significance of anaerobic biorefineries, including types of feedstocks, uses for the produced energy, as well as sustainable applications of the generated residual digestate. A comprehensive analysis of various types of anaerobic biorefineries has been developed, including both large-scale and household level applications. Finally, future directives are highlighted showing how anaerobic biorefinery concept could impact the bioeconomy in the near future.
AUTOMATIC PROCESS CONTROL IN ANAEROBIC DIGESTION TECHNOLOGY: A CRITICAL REVIEW
Anaerobic digestion (AD) is a mature technology that relies upon a synergistic effort of a diverse group of microbial communities for metabolizing diverse organic substrates. However, AD is highly sensitive to process disturbances, and thus it is advantageous to use online monitoring and process control techniques to efficiently operate AD process. This article provides a critical overview of the available automatic control technologies that can be implemented in AD processes at different scales.
EFFECTS OF NANO CERIUM (IV) OXIDE AND ZINC OXIDE PARTICLES ON BIOGAS PRODUCTION
With an increase in use of nanoparticles (NPs) in day to day products, these particles eventually enter the wastewater treatment plant and get removed from the effluent while getting accumulated in the sludge at ever increasing concentrations. The results showed that CeO2 and ZnO NPs showed some degree of inhibition in biogas production with 65.3% biogas reduction at ZnO NPs at 1000 mg/L concentration. Conversely, CeO2 at low concentration of 10 mg/L lead to an increase biogas generation by 11%. The tolerable exposure concentrations for ZnO were determined to be 100 and 500 mg/L, where the system could overcome the inhibition effect after 14 days of incubation. The bacterial toxicity test showed that both nanoparticles were toxic for bacteria leading to biogas reduction.