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Dwindrata Aviantara
Badan Riset dan Inovasi Nasional
Computer Science & IT Education

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CHEMICAL SPECIATION APPROACH IN THE RISK EVALUATION OF ENVIRONMENTAL DISASTER CONTAMINANTS EXPOSURE Dwindrata Aviantara
Jurnal Sains dan Teknologi Mitigasi Bencana Vol. 16 No. 2 (2022): Jurnal Sains dan Teknologi Mitigasi Bencana
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jstmb.v16i2.5370

Abstract

Heavy metals are common environmental contaminants. Depending on the amount and chemical species that present, these heavy metals can turn into environmental pollutants which in certain environmental conditions can be in a biologically available form so that they have the potential to cause toxic effects. Analysis of the risk of heavy metal exposure by relying on the total amount of heavy metals does not provide a real picture of the relationship between exposure and toxicity. A chemical speciation approach that takes into account the chemical state of heavy metal species with potential for mobility, bioavailability and toxicity is a more rigorous strategy in risk analysis of heavy metal exposure. This is because the large total amount of heavy metals is not necessarily able to provide the metal in a biologically available form. On the other hand, the total amount of heavy metals which is considered safe because it does not exceed the regulatory quality standards, but chronic exposure to the forms of chemical species that are biologically available actually poses a threat in the long term. With the support of reliable laboratory equipments and accurate computational chemical speciation modeling, the heavy metal chemical speciation approach is the right tool in environmental pollution risk analysis.
POTENTIAL UTILIZATION OF FLY ASH AND BOTTOM ASH WASTES FOR NATIONAL CAPITAL INTEGRATED COASTAL DEVELOPMENT Dwindrata Aviantara; Fuzi Suciati
Jurnal Sains dan Teknologi Mitigasi Bencana Vol. 16 No. 2 (2022): Jurnal Sains dan Teknologi Mitigasi Bencana
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jstmb.v16i2.5373

Abstract

Jakarta's coastal areas are prone to flooding problems. Floods are generally caused by high-intensity rain, river runoff and tidal waves from sea water. The main causes of this situation are land subsidence, increased river discharge from upstream areas and local rainfall which is not accommodated by the existing drainage system. With the plan to build a giant sea wall in the bay of Jakarta, it is estimated that the sea water rob that hit DKI Jakarta can be overcome. The construction of the giant sea wall and PTPIN requires massive materials for concrete and civil constructions. Fly ash and bottom ash wastes from coal fired power plant have physical characteristics that are estimated to meet PTPIN's needs. In addition, the characteristics of TCLP, LD50 and radioactive of FABA wastes also meet the PP22/2021 criteria. By utilizing the FABA wastes, the exploitation of natural materials for the construction of PTPIN can be avoided so that the PTPIN development process takes place in an environmentally friendly and sustainable manner. Utilization of FABA wastes is in line with circular economy efforts and can change the mindset of FABA wastes from a cost center to a revenue center.
Co-Authors Fuzi Suciati