{"query_echo":{"q":"","filters":{"climate_tags":["water treatment"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'water treatment' for facet 'climate_tags' is not in the controlled vocabulary."}]},"total":{"value":2,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?climate_tags=water+treatment","stability":"beta","ai_marking":{"digital_source_type":{"uri":"http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia","name":"Created using Generative AI"},"notice":"Summary and key insights are generated using artificial intelligence."},"results":[{"id":"cer-000141","url":"https://climateinsightsdirectory.org/document/cer-000141","title":"2011-da-morgan-q223-status-of-acid-mine-drainage-in-the-western-central-and-eastern-basins-94d80b7743e9e039.pdf","publisher":{"name":"Centre for Environmental Rights","organization":"centre-for-environmental-rights"},"document_type":"briefing","language":"en","date_published":null,"source_url":"https://cer.org.za/wp-content/uploads/2011/11/2011-DA-Morgan-Q223-Status-of-acid-mine-drainage-in-the-western-central-and-eastern-basins.pdf?x21779","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags"],"summary":{"text":"A draft reply from the South African Minister of Water and Environmental Affairs to a National Assembly question regarding the status of acid mine drainage responses in the western, central, and eastern basins.","ai_generated":true,"unit":"cer-000141#summary","date_modified":"2026-08-17"},"key_insights":[{"text":"The Department has approved an emergency solution for the Western Basin involving the upgrade of an existing mine water treatment facility to treat between 27 and 32 million litres of mine water daily, with a short-term solution to run in parallel to treat all decanting water.","ai_generated":true,"unit":"cer-000141#insight-1","date_modified":"2026-08-17"},{"text":"Short-term solutions for the Central and Eastern Basins focus on neutralising mine water to prevent underground water levels from reaching their respective Environmental Critical Levels (ECL), which are set at 186 metres below the surface for the Central Basin and 290 metres below the surface for the Eastern Basin.","ai_generated":true,"unit":"cer-000141#insight-2","date_modified":"2026-08-17"},{"text":"The proposed short-term solutions across all basins involve installing pumps to extract underground water and using neutralisation processes in treatment plants to remove heavy metals and adjust pH levels. Commissioning dates are projected for February 2012 (immediate) and August 2012 (short-term) for the Western Basin, August 2012 for the Central Basin, and February 2013 for the Eastern Basin.","ai_generated":true,"unit":"cer-000141#insight-3","date_modified":"2026-08-17"}],"climate_tags":["acid mine drainage","water treatment","environmental critical level"],"geography_discussed":[],"frame_perspective":[],"analysis_type":[]},{"id":"cer-000417","url":"https://climateinsightsdirectory.org/document/cer-000417","title":"annexure-b-part-2-6e7cfd3cd46838c6.pdf","publisher":{"name":"Centre for Environmental Rights","organization":"centre-for-environmental-rights"},"document_type":"report","language":"en","date_published":null,"source_url":"https://cer.org.za/wp-content/uploads/2011/12/Annexure-B-Part-2.pdf?x21779","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"This document is a technical annexure for the Yzermyn Underground Coal Mine, detailing the design and infrastructure for water use authorisation. It covers the construction of the adit platform, administration and workshop facilities, sewage and water treatment plants, waste management, and a comprehensive stormwater management plan designed to separate clean and dirty water.","ai_generated":true,"unit":"cer-000417#summary","date_modified":"2026-08-17"},"key_insights":[{"text":"The construction of the adit platform will require approximately 84,446 m3 of fill material, which will be sourced from the development of the high-wall/adit entrance and the sinking of decline shafts.","ai_generated":true,"unit":"cer-000417#insight-1","date_modified":"2026-08-17"},{"text":"The mine will utilize a Bio-Mite waste water treatment plant (WWTP) with a capacity to treat sewage for 300 people, using anaerobic and aerobic processes to reduce the Biochemical Oxygen Demand (BOD) load by up to 40% in the first stage.","ai_generated":true,"unit":"cer-000417#insight-2","date_modified":"2026-08-17"},{"text":"A modular water treatment plant will be installed during the operational phase and maintained after mine closure to treat decant. The system will use defused air floatation and/or ultrafiltration, followed by reverse osmosis for salinity removal and an ion exchange column for nitrates.","ai_generated":true,"unit":"cer-000417#insight-3","date_modified":"2026-08-17"},{"text":"Brine from water treatment will be processed via freeze crystallisation to produce purified solvent and salt crystals, which will be disposed of as hazardous waste by a registered contractor.","ai_generated":true,"unit":"cer-000417#insight-4","date_modified":"2026-08-17"},{"text":"The mine's explosives magazine will store no more than 1,000 kg of explosives and must comply with the OHSA GNR.109 of 2003 and the Fire Brigade Services Act (No. 99 of 1987).","ai_generated":true,"unit":"cer-000417#insight-5","date_modified":"2026-08-17"},{"text":"The adit development involves a 10-degree dip towards the high-wall, with soft material stripped to seven metres and battered at a 1:5 slope. The total adit footprint is calculated at 2.451 ha.","ai_generated":true,"unit":"cer-000417#insight-6","date_modified":"2026-08-17"},{"text":"A 107m deep upcast ventilation shaft will be installed using a raise-bore approach once mining on the Dundas seam has commenced.","ai_generated":true,"unit":"cer-000417#insight-7","date_modified":"2026-08-17"},{"text":"The stormwater management plan uses a dual Pollution Control Dam (PCD) system to prevent spillages during peak summer rainfall and avoid dry runs in winter. This consists of PC Dam 1 (an HDPE open dam with a volume of 23,000 m3) and seven sectional steel tanks with a combined capacity of 7,742 m3 to reduce evaporation.","ai_generated":true,"unit":"cer-000417#insight-8","date_modified":"2026-08-17"}],"climate_tags":["water management","mining infrastructure","stormwater management","water treatment"],"geography_discussed":["Piet Retief"],"frame_perspective":[],"analysis_type":["technical specification","environmental impact mitigation"]}]}