Removal of Nitrogen from Water Using Biochar Based Passive System
Zhu, Linjie (2021)
2021
All rights reserved. This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2021060714689
https://urn.fi/URN:NBN:fi:amk-2021060714689
Tiivistelmä
Biochar is a stable carbon-rich product formed from thermochemical conversion of biomass in an anoxic condition. It has a great potential in adsorbing nutrients such as nitrogen and other inorganic matters. Working as an effective adsorbent, biochar has received a lot of attention. Its special chemical structure enables biochar to have good adsorption capacity, which can absorb nutrients (like nitrogen and phosphorus) and inorganic ions (Cu2+, Pb2+ and Hg2+, etc.) in water, soil or sediment, as well as polar or non-polar organic compounds. Thus, biochar has a strong adsorption capacity.
The theoretical part of the thesis is based on the existing literature review, focusing on the influencing factors of biochar production methods and factors which will affect adsorption capacity. Two types of biochar (H5 and UEF) were used to test the effect of removing nutrients from mine water and landfill water in the column on a laboratory scale. Under the monitoring by piezometer, biochar were filled in filtration columns during the experiments and the results were obtained by measuring the content of nutrients and assessing the performance of biochar.
The theoretical part of the thesis is based on the existing literature review, focusing on the influencing factors of biochar production methods and factors which will affect adsorption capacity. Two types of biochar (H5 and UEF) were used to test the effect of removing nutrients from mine water and landfill water in the column on a laboratory scale. Under the monitoring by piezometer, biochar were filled in filtration columns during the experiments and the results were obtained by measuring the content of nutrients and assessing the performance of biochar.