Document Details
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Document Type |
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Article In Journal |
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Document Title |
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Pollution abatement of glue industries wastewater خفض التلوث في المخلفات السائلة لصناعة الغراء |
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Document Language |
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English |
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Abstract |
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Pollution abatement of glue industries wastewater.
Ahmed Hossam EL-Din Hassan Mohamed Hassan Ramadan
Environmental Health Dept., High Institute of Public Health, Alexandria University
Publisher: Bulletin of High Institute of Public Health, 1999, Vol (29) No (1): 53-62.
Abstract: There are more than ten glue works in Egypt; five of them are in Alexandria. The process of extracting fat and glue from animal bones generally is accompanied with many environmental impacts. This study assesses the generated wastewater of glue industry. Solid wastes generated from glue works ranged between 234 and 400 tons/year. The components of the solid wastes are trash, dirt, and contaminated fat. The final wastewater of the plants are discharged either by a vacuum truck to unknown places, to the sewer system, or to water course that empties into a wetland area. No treatment of the plant's wastewater is provided, except one plant uses a set of underground tanks as an oil trap. The raw bones washing wastewater stream is high in Biochemical Oxygen Demand [BOD] [mean 4,560 mg/l], Chemical Oxygen Demand [COD] [mean 14,960 mg/l], Total Dissolved Solids [TDS] [mean 4,160 mg/l], Total Suspended Solids [TSS] [mean 1,438 mg/l], and Oil and Grease [O&G] [mean 434 mg/l]. The high values of the organic content are attributed to loss of fat and glue due to the effect of hot water. The low value of O&G in wastewater in some plants using heptane indicates the good performance of fat extraction process. Also the results of wastewater analyses from the fat/water separation process are extremely high in BOD [mean 12,320 mg/l], COD [mean 34,520 mg/l], TDS [mean 41,810 mg/l], TSS [mean 7,451 mg/l], O&G [mean 1,047 mg/l], and sulfates [mean 29,260 mg/l]. These wastewater discharges are major contributors to the final effluent high values for organic material and solids. It is clear from the results of washing floor contaminated with kerosene that this wastewater is high in BOD [mean 14,470 mg/l] and COD [mean 30,670 mg/l]. This wastewater as well is one of the major contributors to the final effluent high values for organic material. Wastewater of heptane/water separation tanks showed that it contained relatively high levels of BOD [mean 490 mg/l] and COD [mean 768 mg/l], although it is low compared with the results of other plants using hot water for extracting fats. |
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ISSN |
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0379-7988 |
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Journal Name |
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The scientific journal of the Higher Institute of Public Health |
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Volume |
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29 |
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Issue Number |
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1 |
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Publishing Year |
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1420 AH
1999 AD |
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Article Type |
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Article |
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Added Date |
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Saturday, August 20, 2011 |
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Researchers
| محمد حسن رمضان | Ramadan, Mohamed Hassan | Researcher | Doctorate | mhmram@hotmail.com |
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