In Mogpog, Marinduque, a team of experts from UPLB headed by College of Arts and Sciences Dean and micro-biologist Dr. Asuncion K. Raymundo has been examining both the soil and bodies of water in the vicinity of an abandoned mining site and has found them heavily contaminated.
Funded by Philippine Council for Agriculture and Forestry Research and Development (PCARRD) of the Department of Science and Technology (DOST), the team was able to plant narra, banaba, and alibangbang in the wasteland with some intervention such as the use of compost, lime, and fungi (Mykovam) despite the presence of heavy metal contamination.
Raymundo said that the possible absorption of copper and the other metal deposits by smaller and easily-grown plants will make it possible for these metals to be recovered and recycled into useful materials.
In the meantime, Drs. Nelson Pampolina, Nelly Aganggan, and Jocelyn Zarate are studying the growth of jatropha, also in the Mogpog site, as a means to rehabilitate the soil. Another Dr. Nina Cadiz is studying the possible effects of the absorption of copper, lead, cadmium, and the other metal contaminants both on the plants and on the fruits and seeds that they will bear.
Raymundo and her student, Arlene Llamado, are also looking into the growth of bacteria in the roots of the plants in the Mogpog site and have correlated the growth of the bacteria population with the growth of the plants used for remediation. A thriving population would mean that the bacteria are capable of consuming the metals found in the soil where the plant is situated. The bacteria can then be isolated and used for future microbial remediation in other mining wastes or polluted environments.
Bioremediation is the process of facilitating the detoxification or removal of contaminants, pollutants or waste from an environment through the use of micro-organisms (microbial remediation) and plants (phytoremediation). Bioremediation is important in the restoration of fertility of soils, and the rehabilitation of rivers and other bodies of water contaminated by pollutants.
Aside from its use in mining sites, bioremediation is also being considered to rehabilitate areas contaminated by gold smelters and tanneries, such as those located in Marilao, Meycauayan, and the Obando river systems in Bulacan. Prof. Marlo Mendoza, Dr. Lorele Trinidad, Dr. Veronica Migo, and Dr. Catalino Alfafara, in cooperation with CHeLSi Tannery of Bulacan, are looking at microbial remediation to reduce the concentration of toxic heavy metals in the industry’s wastewater. Chemical run-offs from tanneries and gold smelters along the rivers have been found to pose a serious threat to the health of communities living along these bodies of water and to those who consume the aquatic resources from these rivers, prompting the team to initiate research on microbial remediation in the tannery and gold smelter industries. Any significant result of the research can be implemented by the industries in the area.
Bioremediation is considered safer than other environmental remediation methods which make use of chemical agents. Unlike the latter, it does necessitate the transfer of local populations or organisms and, at times, let alone restructuring of a community or environment. It uses naturally-occurring biological organisms or agents which pose no danger to the existing population and eco-systems.
The UPLB studies and experiments on bioremediation have been conducted with the cooperation of experts from other academic institutions and agencies also conducting similar research. Among these institutions are the Mindanao State University-Iligan Institute of Technology; the Ateneo de Manila University; and UP Diliman. These universities share their expertise and findings with each other in the hope of finding solutions to various situations where bioremediation can be applied.
Dr. Raymundo has been named Academician by the National Academy of Science and Technology since 2002. A proposal which would enable the researchers to conduct more studies in the area at the cost of P20 million has also been submitted by the team to the DOST. (Khalil Ismael Michael Quilinguing)
Flow of cerebrospinal fluid regulates neural stem cell division
22.05.2018 | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt
Chemists at FAU successfully demonstrate imine hydrogenation with inexpensive main group metal
22.05.2018 | Friedrich-Alexander-Universität Erlangen-Nürnberg
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.
The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...
Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.
Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...
A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.
Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...
02.05.2018 | Event News
13.04.2018 | Event News
12.04.2018 | Event News
18.05.2018 | Power and Electrical Engineering
18.05.2018 | Information Technology
18.05.2018 | Information Technology