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Soil structure is one of morphology (appearance) of land that can be observed directly. Soil morphology is a description of the soil body showing the appearance-appearance, characteristics and common properties in a soil profile. The characteristics of soil morphology is indicative of a process – a process that never experienced a kind of land during weathering, the formation and development. ...

Phosphate present in natural water or wastewater as compound orthophosphate, polyphosphate and organic phosphate. Each phosphate compound is present in dissolved form, suspended or bound in the cells of organisms in the water. orthophosphate is an inorganic phosphate, is one form of phosphorus (P) dissolved in water. Orthophospate is benttuk phosphor that can be directly utilized by plant organisms (phytoplankton ...

Freezing means changing the liquid content found in most of the fish’s body to ice. Fish will begin to freeze at temperatures between -0.6 ° C to -2 ° C, or average at -1 ° C which initially freezes is free water, followed by bound water, . Freezing starts from the outside, the center of the last freeze. Freezing requires ...

Dissolved oxygen is the number of mg / l of oxygen gas dissolved in water. dissolved oxygen in water can be derived from the process of photosynthesis by phytoplankton and aquatic plants or on the diffusion of air. Dissolved oxygen levels can be determined by titration and electronic measuring instrument DO meter. Winkler way based on two oxidation – reduction ...

Packaging is one way to increase the added value of products to be sold and extend the durability of products to be sold, the following is one function and the role of packaging on a product  – Packaging as a Moving Tool Packaging is a container for the product and at the same time can serve as a means ...

pH meter is a tool that can be used to measure the pH of a solution. Electrodes on the pH meter immersed in the solution to be tested pH. pH meter will indicate the pH of the solution automatically. Working Principle pH Meter In principle, a pH measurement is based on the electro-chemical potential that occurs between the solution contained ...