Pengaruh Massa Adsorben Batang Pisang dan Waktu Kontak Adsorpsi terhadap Efisiensi Penyisihan Fe dan Kapasitas Adsorpsi pada Pengolahan Air Gambut

Air peat surface water that has a dark brown, is acid, levels of iron and manganese is high and has a high organic content. There are negative effects if used directly and continuously without treatment. The aim of this study is to calculate the removal efficiency of metal Fe on the peat water and calculate the adsorption capacity adsorbent of banana stems. Variables used in this study is a variation of the mass of adsorbent 1; 1,5; 2; 2,5 grams and a contact time of 15, 30, 60 and 90 minutes. The maximum removal for Fe metals occur in a mass of 2,5 grams and a contact time of 30 minutes with the adsorption efficiency of 80,31%. The adsorption capacity is 0,027 mg Fe / g on the mass of 1 gram with a contact time of 30 minutes. Type adsorbent banana stem adsorption Fe is Freundlich isotherm assumed coating formed multilayer by R2 of 0,989

Pengaruh Pencucian Membran Ultrafiltrasi Menggunakan Surfactan dan NaOH pada Proses Penyaringan Air Terproduksi

One of water treatment technology that can be used for treat produced water is membrane technology. The most of challenging in membrane technology is fouling. The objective of this research are to study influence of ultrafiltration membrane washing to flux recovery and removal resistance by using surfactant and NaOH for treat produced water. Membrane that to be used on this research is membrane ultrafiltration with pore size between 0.1500 until 0.0014 micron and using capillary module configuration. The method that to be used is current-cross flow for filtration proses with filtration time 180 minutes with pressure in 0.2 bar, 0.4 bar, 0.6 bar and concentration of cleaning agent surfactant and NaOH in 1.5%, 2.0% and 2.5% by using counter-cross flow with pressure 0.8 bar and time for washing in 30 minutes. The highest washing effectiveness rate of 69.53% obtained by using surfactant 2.5% and filtration pressure 0.6 bar, the highest leaching efficiency based on flux recovery value is 99.32% and 99.65% for removal resistance obtained by using surfactant 2.5% and filtration pressure 0.2 bar

Pencucian Membran Ultrafiltrasi Menggunakan Bahan Kimia NaOH dan Surfaktan 5512 pada Proses Penyaringan Air Terproduksi

Water produced is the result of processing of petroleum that were uplifted to the surface with oil and gas, whose number is greather than the generated oil content. Produced water that goes in to a body of water without going through the very first processing has the potential to cause pollution of the environment. One of the technologies that are to manipulate the water produced using technology such as membrane. The toughest challenge in membrane technology is the fouling. This research to study the transmembrane pressure against flux, determine the effectiveness and efficiency of the concentration of NaOH and Surfactant chemistry wash of flux recovery and resistance removal in the process of ultrafiltrasi membrane technology in water filtration process produced and to get clean water from a water filtration process results produced using ultrafiltrasi membrane. The experiment was conducted using ultrafiltration membranes by feeding produced water. The method used is cross flow system by varying the operating pressure of 0,2, 0,4, and 0,6 bar, variations in the concentration of NaOH and Surfactant 1,5%, 2,0%, and 2,5%. Filtration process of produced water lasted for 180 minutes and each leaching time is 30 minutes, the highest effectiveness rate of 60,65% obtained by using surfactant 2,5%, the highest leaching efficiency based on flux recovery value is 98,87% and 60,66% for removal resistance. The highest flux value after chemical cleaning leaching obtained 1,501 ml/menit. in transmembrane pressure of 0,6 bar and the concentration of the surfactant, Where is the longer permeat through the membran with pressure so the smaller the resulting flux

The Effect of Addition of Clay Lands /(Coagulant AIDS), on the Color Purification of Peat Water with Coagulation-Flocculation Method with Al2SO4

Peat water is a blackish brown surface water And contains colors and turbidity that require effective treatment And efficient to be suitable for use by the society. Various types of coagulant continue to be developed one of which is the coagulant of clay with the addition of alum. The purpose of adding coagulant is to destabilize the colloids so that contacs and clumping of particles that will form a deposited floc. This study aims to calculate the efficiency of color and turbidity in peat water and compare the color quality, and turbidity with the standard of clean water quality standard (Permenkes 907 year 2002). The fixed variable used in this study was stirring speed of 100 rpm at contact time of 1 minute and 20 rpm at contact time 15 minutes. The free variable used consisted of 1 grams alum coagulant mass: 0.2 grams of clay soil, 1 grams alum coagulant mass : 0.4 grams of clay soil, 1 grams alum coagulant mass : 0.6 grams of clay soil, 1 grams alum coagulant mass : 0.8 grams of clay soil, 1.0 grams alum coagulant mass : l grams of clay soil . Highest removal efficiency and turbidity 86.45%, 97%, 82.14% at 1 g mass with particle size + 200 mesh

Penyisihan Kadar Fosfat pada Limbah Cair Laundry Menggunakan Biokoagulan Cangkang Kepiting (Brachyura)

Biocoagulant is a natural coagulant that has an active substance and has a role as cationic which is able to bind colloidal particles in water. Chitosan is a non-toxic, easy-to-degrade and polyelectrolyte biocogulant that can be found in crustacean animals especially in crabs (Brachyura). The availability of crab shell waste has a huge potential to be used as raw material for making chitosan. High concentration of detergent in water can cause water quality to decrease and environmental pollution in the form of increase of phosphate level, so that the previous processing is needed by using coagulation-flocculation method. The research process was done gradually starting from the extraction of crab shells to chitosan by deproteination process, demineralization, and deacetylation, followed by Coagulation-flocculation method. The study was conducted by varying the dose of coagulant by 150 mg / L, 200 mg / L, 250 mg / L and 300 mg / L. The effluent was then analyzed by the laboratory, for COD parameters referring to SNI 06-6989.2-2004, and phosphate refers to SNI 06-6989.31-2005. The result of the analysis was then compared with the PERMENLH / 5/2014 quality standard. Based on the laboratory results, after analyzing the concentration of the parameters tested, it showed that the maximum allowance of phosphate parameters were 81.84% respectively at 200 mg / L coagulant dose with stirring speed of 150 rpm for 2 min and 60 rpm for 15 min followed by deposition for 30 min

Adsorpsi Zat Warna Methylene Blue Menggunakan Spent Bleaching Earth sebagai Adsorben

The industrial waste especiallytextile waste is one of the causes of environmental problems that require effective and efficient processing. Adsorption is a separation method that is simple, easy to operate, flexible, affordable cost and does not produce toxic products. The purpose of this study calculates the efficiency of decreasing the concentration of the colors contained in metyhlene blue dye and studying the adsorption capacity to variations in pH, adsorbent mass and stirring time. The maximum wavelength of the dye methylene blue 660 nm. The efficiency of 99.973 % decline in the highest concentration. Isotherm corresponding to methylene blue dye adsorption by spent bleaching earth is Langmuir isotherm with adsorption capacity to variations in pH of 0.5035 mg/g, the adsorbent mass variation of 0.3816 mg/g, the stirring time variation of 0.5012 mg/g