نتایج جستجو برای: cod and tds
تعداد نتایج: 16830617 فیلتر نتایج به سال:
Upaya pelestarian lingkungan sudah merupakan suatu kegiatan yang tidak bisa dipisahkan dari rangkaian pelaksanaan konstruksi. Setiap tahapan konstruksi harus memastikan kondisi di sekitar lokasi tersebut tetap terjaga. Sistem Manajemen Keselamatan Konstruksi (SMKK) Kementerian Pekerjaan Umum dan Perumahan Rakyat telah mengamanatkan bahwa pemenuhan standar keamanan, keselamatan, kesehatan, keber...
In this study, the photocatalytic method was used for treating the spent caustic in the wastewater of Olefin units used in petrochemical industries which contain large amounts of total dissolved solids (TDS). By using the synthetic photocatalyst of suspended titanium dioxide and measuring the chemical oxygen demand (COD) which was reduced in the photocatalyst (lbc) process, the values of COD we...
Leather processing industries consume high volumes of water and chemicals release effluents into the environment that pollute surface may cause harm to human health. involves different wet stages such as soaking, liming, chrome tanning, rechroming, neutralization, fatliqouring dyeing. The pollution generated from leather varies in volume, nature concentrations. Qualitative quantitative assessme...
background: data mining (dm) is an approach used in extracting valuable information from environmental processes. this research depicts a dm approach used in extracting some information from influent and effluent wastewater characteristic data of a waste stabilization pond (wsp) in birjand, a city in eastern iran. methods: multiple regression (mr) and neural network (nn) models were examined us...
هدف از این مطالعه بررسی آلودگی های ناشی از پساب مزارع پرورش ماهی قزل آلای رنگین کمان (oncorhynchus mykiss)، بر روی فاکتورهای فیزیکوشیمیایی آب رودخانه ریجاب در استان کرمانشاه بود. بدین منظور پنج ایستگاه در قسمتهای مختلف رودخانه در نظر گرفته شد. ایستگاه یک واقع در سر چشمه رودخانه و ایستگاه پنجم در یک کیلومتر پایین تر از آخرین مزرعه پرورش ماهی تعیین شد. در ماههای تیر، مرداد و شهریور سال 1390 فاکت...
گسترش روزافزون جمعیت همراه با رشد صنعتی، زندگی بشر را با مشکلات فراوانی مواجه کرده است. تولید مقدار زیاد فاضلاب و کمبود منابع آب قابل استفاده از جمله این مشکلات می باشند. با توجه به افزایش شدید جمعیت، نیاز بشر به منبعی پایدار و نامحدود امری غیرقابل انکار است. از این رو بشر به استفاده دوباره از پساب های مختلف گرایش پیدا کرده است. امروزه یافتن روشی مناسب برای تصفیه آب و استفاده دوباره از آن یکی ا...
The parameters such as temperature, PH, TSS, TDS, ammonia, phenol, cyanide, sulfide, oil and grease, chloride, DO, COD and BOD were taken to assess the water quality of Sirsiya river, central southern Nepal. Water samples were collected from upstream to downstream from the point receiving industrial effluent to Sirsiya river. It receives wastewater burden of more than 250 industries along Bara/...
Pre-treatment Methods for Seawater Desalination and Industrial Wastewater Treatment : A Brief Review
Feed water that need to be pre-treated before using methods such as, microfiltration, Ultrafiltration, nanofiltration and reverse osmosis is characterized by containing turbidity, bacterial content and total dissolved solid which causes fouling and scaling in membrane performance. Thus, it is necessary to develop a method which is cost effective. Pre-treatment has been shown as a good method to...
Textile dye industry waste is one of the most serious problems in the environment. The dye wastes are severely deleterious to surface water bodies. The present study was an attempt for the assessment of different physicochemical parameters such as pH, temperature, Electrical Conductivity (EC), Total Solids (TS), Total Dissolved Solids (TDS), Total Suspended Solids (TSS), Dissolved Oxygen (DO), ...
Polyester silica nanocomposite fabrics were prepared by incorporating different concentrations of silica nano particles to the fabric by pad-dry-cure method. The prepared composite fabrics were analyzed in terms of change in their mechanical, structural as well as their functional properties. The surface morphology showed the uniform distribution of silica nano particles on fabric through SEM, ...
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