PENGGUNAAN KARBON AKTIF DAN ZEOLIT TAK TERAKTIVASI DALAM ALAT PENYARING AIR LIMBAH LAUNDRY

Peningkatan jumlah jasa laundry sebanding dengan limbah yang dihasilkan yang biasanya dibuang langsung ke lingkungan tanpa adanya pengolahan. Limbah laundry mengandung surfaktan dalam jumlah besar, yaitu jenis surfaktan anionik Alkyl Benzene Sulfonates (ABS) dan Linear Alkyl Benzene Sulfonates (LAS), yang merupakan senyawa kimia yang berpotensi bahaya bagi kesehatan dan lingkungan sehingga perlu upaya untuk pengolahan limbah tersebut. Penelitian ini bertujuan mengetahui efisiensi alat penyaring limbah laundry dengan prinsip absorbsi dan filtrasi. Penelitian dilakukan dengan metode eksperimen dengan 3 perlakuan pada alat penyaring yaitu menggunakan (1) karbon aktif, (2) zeolit dan (3) kombinasi karbon aktif-zeolit. Hasil penelitian menunjukkan bahwa penggunaan alat penyaring dengan karbon tak teraktivasi dapat meningkatkan Total Dissolved Solid (TDS) dan kadar surfaktan, sedangkan alat penyaring dengan zeolit tak teraktivasi dapat menurunkan TDS namun meningkatkan kadar surfaktan sampai 8 kali lipat. Hasil penelitian mengungkapkan fakta bahwa penggunaan karbon aktif dan zeolit tak teraktivasi justru berpotensi mencemari lingkungan. Sehingga untuk tujuan pengendalian pencemaran lingkungan, perlu dilakukan aktivasi terlebih dahulu terhadap karbon aktif dan zeolit sebelum diaplikasikan pada alat penyaring. Kata kunci: alat penyaring, karbon aktif, limbah laundry, surfaktan, zeolite. The increasing number of laundry services is directly proportional to the amount of waste produced which is usually discharged directly into the environment without any processing. Laundry wastes contain large amounts of surfactants, namely anionic surfactants Alkyl Benzene Sulfonates (ABS) and Linear Alkyl Benzene Sulfonates (LAS), which are chemical compounds that are potentially dangerous to health and the environment so efforts are needed to treat these wastes. This study aims to determine the efficiency of laundry waste filter equipment with the principle of absorption and filtration. The study was conducted with an experimental method with 3 treatments on filter devices using (1) activated carbon, (2) zeolite and (3) combination of activated carbon-zeolite. The results showed that the use of a filter device with activated carbon can increase Total Dissolved Solid (TDS) and surfactant levels, while the filtering device with zeolite not activated can reduce TDS but increase surfactant levels up to 8 times. The results of the study revealed the fact that the use of activated carbon and zeolites not activated actually has the potential to pollute the environment. So for the purpose of controlling environmental pollution, it is necessary to first activate the activated carbon and zeolite before it is applied to the filter.Keywords: activated carbon, filtering, laundry waste, surfactant, zeolite.

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Measurements of Detergents Concentration (Linear Alkyl Benzene Sulfonates LAS) for Tigris River Water in Mosul City and Treatment with Sulphurized and Phosphorized Granular Activated Carbon

Iraqi National Journal of Earth Sciences ◽

10.33899/earth.2006.65794 ◽

2006 ◽

Vol 6 (2) ◽

pp. 69-84

Author(s):

temad A. Taha ◽

Dr. Huda A. AlBakry ◽

Dr. Arwa M. Othman

Keyword(s):

Activated Carbon ◽

River Water ◽

Granular Activated Carbon ◽

Alkyl Benzene ◽

Linear Alkyl Benzene ◽

Tigris River

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Primary, secondary screening and evaluation of LAS degrading potential of soil bacteria isolated from Vidya Pratishthan’s college area

Indian Journal of Microbiology Research ◽

10.18231/j.ijmr.2021.049 ◽

2021 ◽

Vol 8 (3) ◽

pp. 239-242

Author(s):

Rajesh J Sharma ◽

H S Patil ◽

Vaishnavi Firme

Keyword(s):

Aquatic Plants ◽

Soil Bacteria ◽

Anionic Surfactants ◽

Low Cost ◽

Hard Water ◽

Alkyl Benzene ◽

Stable Foam ◽

Linear Alkyl Benzene ◽

First Choice ◽

Secondary Screening

Inefficiency of use of soap in hard water popularized the use of anionic surfactants namely, branched alkylbenzene sulphonates (BAS) and Linear alkyl benzene sulphonates (LAS) in detergents. The low cost and superior solubility in hard water had made them popular and first choice of many household care-products. However, the disadvantage associated with their use was formation of stable foam over waterbodies which is detrimental for both the aquatic plants and animals. The current study involves primary and secondary screening of LAS degrading organisms and evaluates their potential. The three isolates screened isolate 1 can degrade LAS to the tune of 66% in 5 days, isolate 2 and isolate 3 degrade 72.16% and 68.25% respectively in 4 days.

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Monitoring the presence of domoic acid in the production areas of bivalve molluscs

Italian Journal of Food Safety ◽

10.4081/ijfs.2016.5706 ◽

2016 ◽

Vol 5 (4) ◽

Author(s):

Rachele Rossi ◽

Olga Arace ◽

Maria Giovanna Buonomo ◽

Daniela Capozzo ◽

Vincenzo Castellano ◽

...

Keyword(s):

Health Care ◽

Experimental Method ◽

Domoic Acid ◽

Food Poisoning ◽

Chemical Compounds ◽

Official Method ◽

Shellfish Poisoning ◽

Bivalve Molluscs ◽

Amnesic Shellfish Poisoning ◽

Production Areas

Algal biotoxins, chemical compounds produced by some microscopic algae, constitute the <em>phytoplankton</em>. The mussels, feeding on phytoplankton, can accumulate these compounds to become themselves toxic. There have been several cases of food poisoning by consumption of contaminated shellfish. Such food poisoning have pushed our health care system to provide monitoring of shellfish in the framework of the monitoring plans carried out by AASSLL. In this paper we report the results obtained monitoring the presence of ASP (Amnesic Shellfish Poisoning) biotoxins, like domoic acid (DA) and its isomers, produced by <em>Pseudonitzschia</em> algae. The analysis were carried out by using both the HPLC-UV official method and an experimental method performed with a Time of Flight mass spectrometer (ESI-TOF). The 100% of samples analysed by the official method have always been below the limits of sensitivity (except one sample), the 65% of samples analysed by ESI-TOF, showed the presence of domoic acid.

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