2.3 Related Research
Mental Lotus Brand (2551) studied the efficiency of cellulose phosphate from rice straw and bagasse to absorb lead and cashmere in wastewater. The aim was to study the best conditions for increasing the amount of phosphorus in straw and landings referred at least through the reaction phosphoric rice FDs. To assess the efficacy of the cellulose phosphate prepared straw and landings realized its ability to absorb heavy metals and for workshops to knowledge to students in the treatment of heavy metals in waste water has . a cellulose phosphate the findings showed. Phosphate in the straw and landings were linked increased temperature and increased time to react phosphoric rice FDs. And when tested adsorption of lead and cadmium in water is prepared in the laboratory and industrial wastewater. found that the cellulose phosphate from rice straw and landings realized less capable of absorbing. Cadmium, lead to better And cellulose phosphate from rice straw is capable of absorbing lead and cadmium have better the cellulose phosphate from bagasse
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Suwanna inclusiveness Inn (2553) studied the update process cellulose sponge straw. rice It focuses on the pretreatment before their straw as raw material to produce a cellulose sponge. This trial studied the effect of the concentration of sodium hydroxide vapor and temperature affecting the condition straw. Found that the optimum conditions for pretreatment is concentrated. Of sodium hydroxide, 10 percent at 70 ° C for 90 minutes and then put the straw through pretreatment to produce a cellulose sponge through a process of preparing Swiss Kos (Viscose Process) The effects of volume. Swiss cellulose solution Costa Costa sodium sulfate and the ratio between Swiss cotton fiber to absorb water, swell and the tensile strength of the cellulose sponge. The results showed that the optimum conditions for producing cellulose sponges are. The amount of cellulose in the presence of Swiss necklace 6 percent ratio between Lewis Cosby on sodium sulfate is 1: 2 and 1 percent by weight of cotton, put the weight Lewis Cosby. And sponges that produce a high ability to absorb up to 31 times the weight of a dry sponge. The results of this trial Sponge natural fiber absorbs water better than the original research to 2.14 times
sublime Hturpomi Goodnight et al (2554) studied the adsorbent from rice husk ash to absorb free fatty acids in the oil, crude palm of education. Conditions to use the adsorbent the RHA was prepared by burning rice husk at 450 and 700 ° C and frozen hydrochloric acid concentration of 3 molar before or after combustion and sorbent trial absorb free fatty acids. In oil, crude palm using sorbents 0.4 g per palm oil raw 20 grams at a temperature of 50 ° C for 3 hours, the RHA 700 ° C absorbs better RHA 450 ° C due to the burning of rice husk temperature. High lead to contamination and less porous large for immersion acid of RHA at 450 ° C will result in the ability to absorb the increase, but the infusion acids of RHA at 700 ° C to send. The ability to absorb the decline may be due to the infusion of acid affect the pore size, surface area and composition of the sorbent by the sequential dip acid before the latter insignificant sorbent capable of sucking. RHA is best to soak up acid before firing at 450 ° C can absorb free fatty acids, 210 mg of fatty acids per gram of adsorbent.
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