Maksudnya Acid Mine Drainage? Walupun pertanyaan ditujukan spesifik buat orang KPC, mungkin saya bisa membantu ya?
Ini saya "copy paste" saja ya? Scope of target AMD study: 1. Rock samples analysis (static test): * Total sulphur contents * Acid Neutralizing Capacity/ANC * Net Acid generating (NAG test) * Minerals content especially for PAF (Potential Acid Forming) materials * Determining the Maximum Potential Acidity (MPA) * Determining the Net Acid Producing Potential (NAPP) * Weight of each samples - 1 kg 2. Potential AMD analysis - classification of NAF (Non Acid Forming) and PAF (Potential Acid Forming) materials 3. AMD impacts assessment and mitigations strategies for AMDAL purpose (ANDAL, RKL and RPL). Samples were collected from the base of the weathered zone (grey shale) to at least 0.5m below the expected pit floor i.e. below the lowest seam. Samples and data required from site: * Minimum from 2 drill holes * Fresh core samples and immediately to be conservation (by "plastic warp" in order to avoid the samples direct contact with air and sunshine) in order to not oxidizing. * Number samples depending number of materials/rock types that determined based on the lithology of each drill holes. Approximately 20 samples would be taken from two drill holes (10 samples per holes). * Priority - samples taken from overburden and inter-burden based on the lithology of each drill hole sampled as follows: * Immediate roof and immediate floor or each seams include the bottom seam that will be mined * Carbonaceous clay/shale * Clay * Sand/siltstone * Weigh of each samples - 1 kg salam, SLAMET RIYADI -----Original Message----- From: Yan Adriansyah [mailto:[EMAIL PROTECTED] Sent: Thursday, December 22, 2005 8:02 AM To: [email protected] Subject: [iagi-net-l] AMD Issue Dear Bapak-Ibu, Barangkali ada yang bisa memberikan sharing informasi mengenai AMD, adapun informasi yang kami perlukan adalah : 1. Teknik sampling: coring atau open hole, interval, kedalaman dan jenis litologi apa yang berpotensi menjadi PAF, apakah sampling harus mencapai hingga final pit bottom elevation ?. 2. Penempatan material PAF ini dalam area dumping/disposal. 3. Kemana harus saya kirim sample ini untuk dianalisis, maklum company kami tidak memiliki lab. yang support utk pekerjaan ini seperti halnya yang ada di KPC. 4. Spasi drilling sehingga coverage area yang kita ambil sample-nya cukup memadai untuk analisis ini. Sebagai gambaran bahwa dip lapisan di area tambang kami bervariasi antara 30 - 50 degree dengan jenis litologi sandstone, mudstone dan tentunya coal. Semoga para sesepuh AMD di KPC bisa memberikan pencerahan untuk hal ini. Demikian dan terima kasih Salam YN This message and any attached files may contain information that is confidential and/or subject of legal privilege intended only for use by the intended recipient. If you are not the intended recipient or the person responsible for delivering the message to the intended recipient, be advised that you have received this message in error and that any dissemination, copying or use of this message or attachment is strictly forbidden, as is the disclosure of the information therein. If you have received this message in error please notify the sender immediately and delete the message. --------------------------------------------------------------------- To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id Visit IAGI Website: http://iagi.or.id IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/ IAGI-net Archive 2: http://groups.yahoo.com/group/iagi Komisi Sedimentologi (FOSI) : Ratna Asharina (Ratna.Asharina[at]santos.com)-http://fosi.iagi.or.id Komisi SDM/Pendidikan : Edy Sunardi(sunardi[at]melsa.net.id) Komisi Karst : Hanang Samodra(hanang[at]grdc.dpe.go.id) Komisi Sertifikasi : M. Suryowibowo(soeryo[at]bp.com) Komisi OTODA : Ridwan Djamaluddin(ridwan[at]bppt.go.id atau [EMAIL PROTECTED]), Arif Zardi Dahlius(zardi[at]bdg.centrin.net.id) Komisi Database Geologi : Aria A. Mulhadiono(anugraha[at]centrin.net.id) ---------------------------------------------------------------------
