1. Deep Sea Tailing Placement (DSTP) is a method used by Ramu NiCo Management (MCC) Limited at its Basamuk Nickel-Cobalt Refinery in Madang Province, Papua New Guinea, to discharge tailings into great depths in the ocean.
2. The aim of the study was to assess the concentration of metals (Ni, Co, Cr6+, Mn, Zn, Cu, Se, Pb, Ag, Hg, Cd, and As), acidity, and flow velocity rate of the tailing effluents prior to discharge to determine the safety of the waste on the local marine ecosystem.
3. The metals were analyzed using Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS), except for Hg, which was analyzed by Flow Injection Mercury Systems (FTMS), and Cr6+ by Discreet Analyzer.
4. The pH and flow velocity rate were measured using a pH meter and special software installed monitoring computers, respectively.
5. The results showed that the monthly average pH was 8.32 units, which falls within the safe limits range of 6.9-9.0 units, and the monthly average flow velocity rate was 1677 m3/h, which is within the recommended range of 1225-2075 m3/h.
6. The concentrations of all metals were below the recommended values, indicating that the chemistry of the tailing effluent is acceptable for release into the environment.
7. Further studies are required to ascertain the long-term effects of DSTP on the marine ecosystem of the implicated site.
Briefly, Put all the above information in only one paragraph
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