TNeutron

Composite paper is paper that is processed together with other packaging materials such as plastics and metals, which aims to improve the brittle force, stiffness and strength of the material. Paper mixed with metal and formed into cans called composite cans, used for citric juice, spice containers (spices), chocolate boxes, dry soups, chemicals and medicines. The packing industry has made ...

Karbondioksida dalam air, dapat berupa gas karbondioksida bebas (CO2), ion bikarbonat (HCO-3), ion karbonat (CO32-) dan asam karbonat (H2CO3). Karbondioksida bebas ini diperlukan dalam proses fotosintesis oleh tumbuhan berhijau daun.Sedangkan garam karbonat dan bikarbonat terutama garam kalsium diperlukan untuk menyangga pH air. Karbondioksida bersenyawa dengan air membentuk asam karbonat (H2CO3) yang menghasilkan kondisi asam dalam perairan menjadi H+ dan HCO3- ...

Menurunnya kadar oksigen. Pada dasarnya proses penurunan oksigen dalam air disebabkan oleh proses kimia, fisika dan biologi yaitu:  Proses pernafasan (respirasi) baik oleh hewan maupun tanaman.  Proses penguraian (dekomposisi) bahan organik.  Dasar perairan yang bersifat mereduksi. Dasar perairan ini hanya dapat ditumbuhi oleh bakteri-bakteri anaerob saja, yang dapat menimbulkan hasil pembongkaran yang bersifat mereduksi seperti metana, asam ...

Carbon dioxide in water, can be free of carbon dioxide gas (CO2), the bicarbonate ion (HCO 3), carbonate ion (CO32-) and carbonic acid (H2CO3). This free carbon dioxide needed in photosynthesis by plants berhijau daun.Sedangkan carbonate and bicarbonate salts, especially salts of calcium needed to support the water pH. Fused carbon dioxide with water to form carbonic acid (H2CO3) that ...

Generally the presence of plankton in the water will be influenced by the type of waters (running and stagnant), quality of the chemistry and physics of water (eg, temperature, brightness, flow, pH, CO2 content is free, the content of nutrients), and their competitors and or predators of plankton. In the stagnant waters (eg, ponds, swamps, lake, lake), the presence of ...

In ocean currents caused by differences in seawater density period, winds constantly above sea level and tidal especially in coastal areas. Ups and downs can also replace water in total and continuously so as to avoid water pollution. While the beach may change the distribution and dampen the flow. Flow has a positive and negative effect for the life aquatic ...