PENURUNAN KONSENTRASI LIMBAH DETERJEN MENGGUNAKAN FURNACE BOTTOM ASH (FBA)

Using detergent which progressively extend in society because detergent have many excellence compared to with soap generate ecological problem in water. It was caused by ALS ( Linear Alkil Benzene Sulfonat ) as deterjen formed, having the character of poison. Adsorption Process was used to permeate ALS by using Furnace Bottom Ash adsorbant ( FBA) which it got from burning of coal. Furnace Bottom Ash ( FBA) expected can permeate ALS in detergent waste water in an optimal condition. From the research which have been conducted, to be obtained by optimal ability at weight of FBA around 80 g / l , 16 mesh of FBA diameter and also contact time around 75 minute equal to 85.05 % Ability[of FBA Adsorbtion to degrade ALS concentration in detergent waste by batch process generally expressed in statistical equation of Y = - 4.3091 x + 25.6313 Keywords : Waste Detergent, ALS, Adsorbtion, Furnace Bottom Ash ( FBA

EFFEKTIFITAS MULTIVALEN METAL IONS DALAM PENURUNAN KADAR PHOSPT SEBAGAI BAHAN PEMBENTUK DETERJEN

Phospat is the key element of nutrien that cause eutrophication. Recently, many home industri such as Laundry can effect to the stream, it caused eutrophication. Phospat is one of builders in deterjen that cause eutrophication. Multivalen Metal Ions is one of Coagulant that used as Phospat removal from domestic waste, esspesially deterjen by Coagulation – Floculation test. The most commonly used coagulants of Multivalen Metal Ions are Ferric chloride (FeCl3 ) and Aluminium Oxide (Al2O3). There are many variation of Concentration that added into wastewater as coagulant that can remove Phospat from effluent pipe and drainage. The aim of Coagulation Floculation test in this research is to know the optimum dosage of Ferric Chloride and Aluminium Oxide to remove phospat. The result of this research is that Aluminium Oxide more effective to remove phospat than Ferric Chloride to remove phospat from effluent pipe and drainage. Aluminium Oxide removed phospat in effluent pipe around 66,49 %. The abbility of Ferric Chloride to removed phospat around 54,25 %. Aluminium Oxide more effective than Ferric Chloride, it caused that Aluminium Oxide can make floc destabilisation at pH 6 – 8. Efficiency of Ferric Chloride and Aluminium Oxide almost the same to remove phospat in drainage. The abbility to remove phospat is around 73,9 % of Ferric Chloride and 74,85 % of Aluminium Oxide. The ability of Ferric Chloride is significant to remove phospat in drainage, it cause Ferric Chloride has abbility to remove phospat at pH 8 or more

PENGARUH POLUTAN ORGANIK TERHADAP KOEFISIEN PERPINDAHAN MASSA VOLUMETRIK OKSIGEN – AIR PADA KOLOM GELEMBUNG

Mass Transfer coefficient influenced by diffusivity oxygen, density condensation, Viscosity condensation, surface tension, acceleration of gravity, dimention of gas distributor , bubble column diameter, speed superficial, Organic Polutan ( using glucose as waste artificial) through into bubble column by distributor appliance with various size measure. This research show that concentration of polutan ( glucose) is high, hence coefficient of transfer mass of volumetric at concentration less than 10% smaller, but the concentration bigger than 10% is increase. At the greater hole of distributor and speed of superficial of gas increase, hence coefficient of transfer mass of volumetrik will progressively mount so that assess dissolve Oxygen also will progressively moun

EFFEKTIFITAS PAC DAN TAWAS UNTUK MENURUNKAN KEKERUHAN PADA AIR PERMUKAAN

Kebon Agung Canal was one of the alternative to fulfill clean water in UPN “Veteran” Jatim. The problems is standard water of Kebon Agung Canal still not yet fulfilled standard quality of clean water so that it is need to be processing beforehand. At this research will be studied about processing of standard water of Kebon Agung Canal especially of physical processing, that is using of coagulation – flocculation continyu procces with sedimentation basin with type variation of coagulant to get the optimum coagulat to removal of turbidity, Total Suspended Solid and Total Disolved Solid. This research used PAC and Tawas and also variation of time detention, it is around 20 until 120 minute in sedimentation tank. The result of research that usage of Alum coagulant can cast aside turbidity equal to 61,48 % and for the coagulant of PAC equal to 58,52 %. At exclusion of TSS 57,5 % for Alum and 52,5 % for the coagulant of PAC, for the exclusion of TDS got that Alum can cast aside equal to 72,15 % and for PAC equal to 67 %, that result obtained for time detention 120 minutes. From result of above can know that usage of Alum coagulat by modify appliance that is with addition of partition at basin of flocculation can give better result effluent than using PAC coagulant. Key word s : Coagulation – Flocculation, Tawas, PAC, Kebon Agung Cana

OPTIMASI PEMATANGAN KOMPOS DENGAN PENAMBAHAN CAMPURAN LINDI DAN BIOAKTIVATOR STARDEC

Composting is one of the methods use to turn organic solid waste into new materials that relatively stable. Composting with domestic solid waste as the raw materials is the eco friendly technology, and produce final product that can be use to reconditioning, reduce the amount of solid waste transferred and dumped to the Landfill (TPA) so it can be used longer. This research aimed to ascertain the best of compost making process based on the material by adding leachate and Stardec bioactivator. Aerobic composting uses the variation of vegetables solid waste from Keputran traditional market Surabaya and leaves from Semolowaru area. In the first fase leachate biostater with the concentrations of 25 ml, 50 ml, 75 ml, and 0 ml mixed with 5,6 gram Stardec bioactivator was added to vegetables solid waste. In the second fase, biostater with the same concentrations was added to leaves solid waste volume used is 5 Kg/reactor. The results shown that the best added biostater concentrations in accelerating composting processes in this research is 75 ml leachate. This was shown by 0,1714/day and 0,4901/day degradation pace vegetables solid waste and leaves solid waste, respectively. Key words : Aerobic Composting, Vegetables waste, Leaves waste, Leachate, and Stardec

PERCEPATAN WAKTU PENGOMPOSAN MENGGUNAKAN KOMBINASI AKTIVATOR EM4 DAN STAR BIO DENGAN METODE BERSUSUN

The composting process commonly takes place within the quite long time, thus the Purpose of this Research was intended to accelerate the composting time and to obtain the good compost quality with the activator use concentration as efficient as possible. In this research the Composting Process was conducted in the lab scale using the mixture between the EM4 activator and Star Bio by staged method with the proportion of activator use 1 : 1 in which the activator use volumes variablewere as much as 60 ml, 70 ml, 90 ml, 100 ml and the times variable researched were 5,10, 15, and 20 days with the aerobic process. Of the analysis results obtained theactivation use concentration of 100 ml was effective to lower the C/N ratio (compostmaturity level) from the initial C/N ratio concentration of 58 dropped to 10 in the composting time length of 10 days with the contents of organic C (37.11), N value (3.42), K value (1.17) abd P value (9.2). This case indicated that the obtained resultswere good enough. Due to it has already entered in the SNI standard 19-7030-2004. Key words : Compost, EM4 and Star Bio combination, staged metho

PEMBUATAN PAVING BLOCK DARI CAMPURAN LIMBAH ABU DAN SISA PEMBAKARAN SAMPAH DOMESTIK

Pada proses pembakaran limbah domestik pada bangunan Insenerator menghasilkan abu terbang dan abu dasar dalam jumlah banyak. Abu yang dihasilkan kemudian diletakan pada tanah lapang tanpa diolah lebih lanjut, melalui hal tersebut abu yang tertumpuk pada tanah lapang tanpa lapisan kedap air dapat menimbulkan permasalahan pencemaran lingkungan, salah satunya adalah terjadinya pencemaran air tanah melalui kandungan limbah B-3 pada abu seperti Cu, Zn, Cr, Cd dan Pb. Salah satu upaya pemanfaatan abu hasil dari pembakaran Insenerator ini adalah dengan dimanfaatkannya abu sebagai bahan pencampur pembuatan paving block dengan proses solidifikasi yang diharapkan ramah lingkungan. Hasil percobaan pembuatan paving block dari beberapa variasi komposisi perbandingan semen, pasir, abu, abu batu dan faktor air semen dari salah satu yang terbaik adalah komposisi K5 (FAS0,3) yang memenuhi kuat tekan dan daya resapan air pada standar nasional Indonesia (SNI) mutu B. Kemudian ditinjau dari pengujian hasil rendaman air paving block pada komposisi K5 (FAS 0,3) menunjukan hasil air rendaman masih memenuhi baku mutu Pengelolaan Kualitas Air dan Pengendalian Pencemaran Air PP N0. 82 Tahun 2001.   Kata kunci : Abu terbang, hasil pembakaran insenerator, pemanfaatan, bahan campuran, paving block, solidifikasi DOI : https://doi.org/10.33005/envirotek.v9i1.104

REDUKSI SAMPAH KOTA DENGAN METODE PENGOMPOSAN

Garbage volume in Surabaya which is progressively mounts, so that to overcome, it neededgarbage town reduction before thrown to TPA. The characteristics of garbage town in Surabaya consist of35, 89 % organic garbage, hence correctprocessing to reduce garbage town is by composting method. This research use variation of EM4 which added (10,6 ml ;12,2 ml; 14,2 ml; 17 ml; 21,3 ml) and composting time (1,2,3,4,5,6 ofday). The result ofthe research obtained that addition of EM4 counted 21, 3 ml require composting time 4 day. The duration composting cab reduce garbage equal to 12,57 % with value ofC/N 15,49 and F/M0,25 - 0,32 kg/ml Key words: town garbage, addition ofEM4, Composting 11

PROSES FOTOKATALISIS UNTUK PENYISIHAN E.coli DENGAN KOMBINASI TiO2,KARBON AKTIF DAN SINAR UV

One of bacteria which the most found in drinking water is E.coli as pathogenic bacteria. Contamination of ground water occurs because of pathogenic bacteria. Close distance between ground water and surface water or septic tank made contamination of ground water. E.coli bacteria had to remove from ground water, so that the people deserved ground water as drinking water. This research aimed to design reactor to remove E. Coli bacteria. The processes were photolysis process and phothocatalysis process. Both of them in a Fixed Bed Reactor used for removal of E.coli bacteria. Photolysis process in Fixed Bed Reactor using a 10 watt ultra violet lamp. Photocatalysis is process using to combine TiO2powder as catalyst with variation of the concentration of 10 g / L, and 20 g / L on screen and activated carbon as buffer media. Catalyst preparation by mixing the activated carbon and TiO2coating on the screen was performed before contact in the reactor. Photolysis process and the photocatalysis process was done by detention time 20,40,60 and 90 minutes. Analysis of the data used the correlation between the removal of E.coli with the process of photolysis and combination photocatalysis process. Removal E. coli reached 100% within 60 minutes and 90 minutes on the photocatalysis process by screen buffer. While the photocatalysis process by activated carbon media, removal E. coli reached 100% allowance on detention time of 90 minutes. Key words :Photolysis, photocatalysis, E.coli, TiO2, acti

PENGGUNAAN ZEOLIT ALAM UNTUK ADSORPSI ION Fe (II) DALAM AIR TANAH DENGAN AKTIVASI ASAM NITRAT

Air tanah sebagai salah satu sumber air baku biasanya memiliki kandungan logam besi (Fe) yang relatif tinggi sehingga perlu diolah. Salah satu alternatif pengolahan yang dapat dilakukan adalah adsorpsi. Salah satu material yang dapat digunakan sebagai adsorben adalah zeolit. Zeolit banyak terdapat di alam dan belum banyak dimanfaatkan. Sehubungan dengan itu, perlu dilakukannya penelitian penyisihan Fe dalam air tanah menggunakan zeolit sebagai adsorben. Tujuan penelitian ini adalah menganalisis kemampuan zeolit sebagai adsorben penyisihan Fe dalam air tanah. Penelitian ini dilakukan secara batch dengan variasi berat adsorben dan waktu kontak. Konsentrasi Fe diukur dengan Spektofotometer Serapan Atom (SSA). Hasil penelitian menunjukkkan kondisi optimum penyisihan Fe pada air tanah terjadi pada berat zeolit 5 gram dalam waktu kontak 120 menit  sebesar 86,72% dengan sisa Fe 0,17 mg/l. Persamaan isoterm terpilih adalah isoterm Frenluich dengan kapasitas serapan maksimum Fe 1,11 mg/l. Dari hasil penelitian tersebut, maka dapat disimpulkan penggunaan zeolit sebagai adsorben mampu menyisihkan Fe dengan baik.  Kata kunci: logam besi (Fe), adsorpsi, zeolit.DOI : https://doi.org/10.33005/envirotek.v9i2.96