CERRM shared its expertise on bauxite mining

A workshop aimed at enhancing awareness on issues relating to bauxite mining was organised by the International Maritime Organisation (IMO), with the cooperation of Ministry of Transport, Kuantan Port Authority (KPA) and Marine Department

Kerjasama erat UMP dan Yamaguchi University

Hubungan baik yang terjalin di antara Fakulti Kejuruteraan Awam & Sumber Alam (FKASA) Universiti Malaysia Pahang (UMP) dan Yamaguchi University (YU) melalui beberapa program dalam bidang akademik dan penyelidikan seperti program mobiliti pelajar YU ke FKASA UMP di sini telah membuka peluang kepada Pusat Penyelidikan & Pengurusan Sumber Alam (CERRM) dalam merintis jalinan kerjasama yang lebih berkesan bersama YU

CERRM dan Yamaguchi University tingkat penyelidikan Geoteknik

Pusat Penyelidikan & Pengurusan Sumber Alam (CERRM) dan Yamaguchi University Jepun terus mempergiat hubungan kerjasama pengantarabangsaan universiti hasil kunjungan delegasi UMP yang diketuai oleh Pengarah CERRM, Dr. Muzamir Hasan ke universiti tersebut baru-baru ini

UMP dan Asahitechno Co. Ltd bangunkan teknologi Super Well Point tangani banjir

Pekan, 17 Oktober –Universiti Malaysia Pahang (UMP) jalin kerjasama dengan Asahitechno Co. Ltd Japan dalam perkongsian teknologi bagi mengaplikasikan kaedah menguatkan struktur tanah (ground improvement) dan mengurangkan aras air dalam tanah (ground water level reduction) menggunakan Teknologi Super Well Point bagi menangani masalah banjir di negeri ini

Penyediaan pelan pengurusan lembangan sungai bersepadu Sungai Muda,Kedah/Pulau Pinang

Lembangan Sungai Muda terletak di Negeri Kedah Darul Aman. Keluasan kawasan tadahan bagi lembangan Sungai Muda ialah seluas 4,219 km persegi. Sungai Muda adalah sungai terpanjang didalam negeri Kedah iaitu lebih kurang 178 km. Jajaran Sungai Muda rnelalui beberapa daerah seperti Baling, Sik dan Kulim, sebeluin ianya mengalir keluar melalui daerah Kuala Sungai Muda ke Selat Melaka. Sebahagian daripada jajaran Sungai Muda menjadi sempadan di antara Negeri Kedah dan Pulau Pinang. Antara sungai-sungai utama di dalam Lembangan Sungai Muda adalah: Sungai Ketil, Sungai Lahar Endin, Sungai Tembus, Sungai Sedim dan Sungai Chepir, Sungai Sok, Sungai Teliang dan Sungai Baho. Bilangan penduduk yang mendiami lembangan Sungai Muda adalah seramai lebih kurang 201,234 orang yang kebanyakannya tertumpu di kawasan rendah dan dataran banjir. Komposisi gunatanah semasa lembangan Sungai Muda adalah terdiri daripada perbandaran dan infrastruktur (5%), perlanian (40%), hutan (50 %) dan lain-lain (5 %)

Evaluation of salt water intrusion in the Kuantan Estuary with the application of a 1-D analytical salt intrusion model integrating the predictive equations for dispersion and Van der Burgh’s coefficients

Salt water intrusion in the Kuantan Estuary has become crucial due to the extreme El-Nino event that occurred from the end of year 2015 to early 2016. This phenomena has caused water supply disruption in the area as the sea water has reached the water abstraction station at Kobat. Conducting detailed salt intrusion study will require substantial field surveys and it is time consuming. Hence, this study adopted a predictive measure to simulate the longitudinal salinity distribution in the Kuantan Estuary using a 1-D analytical salt intrusion model integrated with an empirically derived predictive equations for the dispersion and Van Der Burgh coefficients. The performance of the predictive model was evaluated by comparing the calibrated salinity curve against the measured data obtained from the previous study in 1977. From the analysis, the result in Figure 1 indicates that the performance of the predictive model is nearly equivalent to the study in 1977 with the root-mean squared error of 1.59 ppt and 1.57 ppt, respectively. The Nash–Sutcliffe efficiency coefficients of 0.95 are obtained for both methods. However, for the salinity at 8000 m (from mouth) onwards, the predictive model shows a significantly high efficiency with the Nash–Sutcliffe efficiency coefficients of 0.99 compare to 0.92 from the previous study. The root-mean squared error is as low as 0.38 ppt. Hence, it is proven that the empirically derived predictive model is applicable in predicting the longitudinal salinity distribution in the Kuantan Estuary

Investigation of the current salt intrusion condition in the Kuantan estuary and the efficiency of the Kuantan barrage

Kuantan River has been spotted to have a high potential rate of being affected by salt intrusion issue. A research was conducted to estimate flow discharge in the Kuantan Estuary, to test, calibrate and validate the Van der Burgh coefficient, K and dispersion coefficient, D in the 1-D analytical salt intrusion model, and to verify the salinity condition in the Kuantan Estuary before and after the construction of the barrage. Basin delineation has been done by using GIS approached in collaboration with HEC-GeoHMS. The estimation of flow discharge in the Estuary was carried out by using hydrological modelling, HEC-HMS. Besides that, the study utilised the predictive discharges from the 1-D model for comparison purposes due to data availability issues in the estuary. 1-D analytical salt intrusion model has been adopted in this study to test, calibrate and validate several parameters and the model suitability for the salinity investigation in the estuary. Thus, five field surveys have been conducted in Kuantan Estuary on 27th and 29th March, 3rd October 2017, 7th March, and 15th April 2018. The study for the estuary covered from the mouth of estuary until the reading reached 1ppt but until the Kobat barrage by using moving boat technique. In addition, the study also extended to the Belat Estuary to test the model and study the potential of the tributary. Thus, four surveys in Belat Estuary have been conducted on 26th April, 2nd October 2017, 6th March and 14th April 2018. From the salt intrusion simulation, the Van Der Burgh coefficient, K for Kuantan Estuary and Belat Estuary are 0.45 and 0.5, respectively. The dispersion in Kuantan and Belat Estuary is in the range of 100 to 250 m2/s and 50 to 200 m2/s, respectively. The future low flow in the estuaries was estimated by performing Hydrological Procedure No 12 with 7 days in 50years ARI. The low flow obtained for Kuantan and Belat Estuary is 3 and 61.5m3/s, respectively according to the fraction area. These low flow discharge then utilised in 1-D Salt Model by using the current salinity scheme. The error analyses for HEC-HMS and 1-D Salt Model are performing by using two methods which are NSE and RMSE method. In overall, the 1-D Salt Model demonstrated well in these two estuaries

Investigation of salt intrusion condition in the Belat Estuary

Awareness on salt intrusion problem is still lacking in Malaysia due to high precipitation in the region. However, the El-Nino phenomenon that occurred recently has caused extremely low fresh water discharge in the Kuantan River which allowed the sea water to intrude further into its water intake region. Consequently, the Belat River may become potential water resources alternative to build new water intake station for the water supply in the Kuantan River Basin. The aims of this study are to: 1) investigate the salinity distribution in the Belat Estuary; 2) evaluate the applicability of the 1-D analytical salt intrusion solution; 3) determine the calibration parameters in the salt intrusion model. Salt intrusion measurements was conducted during the dry season at spring tide when the fresh water discharge is the minimum. Collection of data such as hydrological data, river cross section and salinity were collected to be used in the salt intrusion analysis. The results obtained show good agreement between the simulated and observed salinity distribution in the estuary with low RMSE and high NSE values. This indicates that the model is reliable and can become an important tool for water manager in conducting salt intrusion study for this area

Geotechnical Properties Of Raw And Processed Bukit Goh Bauxite In Accordance With International Maritime Solid Bulk Cargoes (IMSBC) Code

Recently, a bulk carrier carrying 46 400 tons of bauxite from Kuantan, Pahang destined to arrive in China capsized about 150 nautical miles off the coast of Vietnam with 18 fatalities and only one survivors. The marine safety investigation into the loss of the Bulk Jupiter has uncovered evidence to suggest liquefaction of cargo led to loss of stability. The aim of this study is to determine the geotechnical properties of both raw and processed Bukit Goh bauxite located in Kuantan; and compare the results with International Maritime Solid Bulk Cargoes (IMSBC) Code. Bauxite deposits usually contain a higher percentage of clay and siliceous materials. The silica present in the bauxite usually are concentrated in the finer grained fraction of the bauxite deposit. The fine particles in bauxite caused the bauxite to have higher moisture content and increases the risk of liquefaction to occur during the bauxite’s transportation in cargo. The main objective of having beneficiation process is to minimize the silica content in bauxite, as well as to improve the geotechnical properties of bauxite so that it passes the specification of IMSBC Code for cargo shipping purpose. In this research, a series of laboratory tests will be conducted and the results will reflect the geotechnical properties of Bukit Goh Bauxite and the correlation of the bauxite’s properties can be done. Both the raw and processed Gebeng Bauxite underwent moisture content test, specific gravity test, particle size distribution, and X-ray fluorescence (XRF) to obtain the desired data. The results show that average moisture content of raw bauxite is 24.81% which exceeded the recommended value of maximum 10% while the average moisture content of processed bauxite is only 6.69%. The average fine material for raw bauxite is 38.40% which should not be greater than 30% per IMSBC Code standard while for processed bauxite is 21.40%. Hence, it is preferable if the bauxite from Bukit Goh mine undergoes beneficiation process before being transported to reduce the risk of cargo liquefaction