Page 144 - 1-37
P. 144

TRANSFORMING         TRANSFORMING         TRANSFORMING
         SUSTAINABILITY REPORT  FY 2023                                                                                                                                     COMMUNITIES           THE PLANET         THE WORKPLACE












                                                                                                                   Tailings Management


                                                                                                                   Tailings are the inevitable byproducts of                  Tailings management is subject to various
                                                                                                                   mining and the storage and management of                   environmental regulations and failure to comply with
         •  Financial validation through a cost-benefit analysis (CBA) was performed to                            these waste streams complement the mining                  these can result in penalties, or even the suspension
            determine the economic viability of the process.                                                       process. Tailings are toxic and need to be                 of mining operations. It is thus clear, that the

         •  Finally, once all the evaluation parameters were satisfied the project was rolled                      stored in secure areas, in compliance with                 management of tailings and their storage is of
            out for implementation within a timeframe of six months.                                               regulations. For the mining industry                       utmost importance and requires our complete
                                                                                                                   worldwide, tailings management poses                       attention.
         The success of this waste valorization initiative highlights the immense potential                        significant social, safety, and environmental
         that innovative ‘waste’ recovery and reuse carries in terms of resource                                   challenges across the entire lifecycle of                  Tailings Management Facilities (TMF) are extremely
         conservation, cost control, business profitability and reduced industrial footprint.                      mining operations. Tailings that are left                  critical parts of the metals and mining processing
                                                                                                                   unsecured can leach contaminants into                      cycle and failure to manage them properly, and as
                                                                                                                   nearby water bodies, resulting in water                    stipulated by law, can pose several forms of risk to
         The initiative has seen a steady increase in the replacement of commercially                              pollution. Such pollution can harm aquatic                 the company – from social and environmental, to
         procured Na SO  salts with internally produced ones, achieving a 58% utilization                          ecosystems, and negatively impact the flora                economic and reputational. A TMF failure would
                      2   4
         rate by September and a projected cost savings of Rs 24.60 million over a                                 and fauna that relies on these ecosystems.                 mean the release of toxic residue into the
         six-month timeframe.                                                                                                                                                 surrounding environment, habitat and/or
                                                                                                                   Further, the tailings storage facility needs to            ecosystems, leading to significant loss of life,
                                                                                                                   be well fortified as any breaches or                       extensive damage to infrastructure and the
                                                                                                                   breakdowns can prove to be catastrophic,                   environment. This can lead to loss of flora and fauna,
         Internal Utilization of RO ZLD Salt
                                                                                                                   resulting in large-scale environmental                     along with contamination of rivers and other
                                                                                                                   disasters.                                                 ecosystems. Such impact would be long-term and

         300                                                                      70%                                                                                         extensive, thus difficult to control and treat. At
         250                                                               58%    60%                                                                                         Vedanta, we remain fully cognizant of these grave
                                                                 48%                                                                                                          risks and are deeply committed to implementing a
         200                                                                      50%
                                                                                  40%                                                                                         stringent framework for meticulous tailings
         150                             30%      30%                                                                                                                         management.
                                                                                  30%
         100                 20%
                                                                                  20%
          50      5%                                                              10%                                                                                         Our management approach includes:
                           85         124         128        254        222
           0                                                                       0%                                                                                         •  Comprehensive risk assessments for scoping,
              Apr’22      May’22     Jun’22      Jul’22     Aug’22     Sep’22                                                                                                   assessing and outlining the different kinds of risks
                                                                                                                                                                                and their solutions;
                                      Na SO  salt consumption
                                                                                                                                                                              •  Deployment of robust engineering and design
                                           4
                                        2
                                                                                                                                                                                practices to ensure that the structures that house
                                                                                                                                                                                the tailings are strong, secure and weather and
                                                                                                                                                                                region-appropriate;
                                                                                                                                                                              •  Conducting of regular monitoring and inspections,
                                                                                                                                                                                and preparation of detailed emergency response
                                                                                                                                                                                plans. Incorporation of industry best practices and
                                                                                                                                                                                other high-tech features to enhance the safety
                                                                                                                                                                                and resilience of our TMFs.





                                                                                                                                                                                                                                     73
   139   140   141   142   143   144   145   146   147   148   149