What is the 5 day BOD of sugar beet factory wastewater? 10000 3. These are organism that returns organic material to inorganic material; completes recycling of atoms. - Decomposer 4. A kind of interaction in which two organisms strives to obtain the same limited resources‚ and in the process both organisms are harmed to some extent. -Competition 5. Which of the following renewable energy may cause radical changes in river ecosystems? – tidal 6. A wastewater sample has a k1 = 0.2 day-1 and an ultimate
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University of Crete‚ Chania 17300‚ Greece b a a r t i c l e i n f o Article history: Received 24 July 2008 Received in revised form 27 December 2008 Accepted 21 January 2009 Available online 24 February 2009 Keywords: Water reclamation Water reuse Wastewater Water recourses management Desalination Water importation Water economics a b s t r a c t Water demands in the Aegean Islands have increased steadily over the last decade as a result of a building boom for new homes‚ hotels‚ and resorts. The
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are necessary for batik wastewater before it is discharged out. While treatment of dyes and chemicals are already available such as adsorption and membrane‚ it is observed that the presence of wax and resin can hinder the efficiency of dye removal using conventional technique. A study was initiated for the recovery of wax and resin using a baffle tank‚ a reboiling technique‚ then further by adding up of hydrochloric acid (HCL) and acetic acid after first boiling of wastewater. The efficiency of removal
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friendly fuel. Large quantities of sludge are produced in industrial wastewater treatment. Industrial sludge has a high putrescibility and therefore has to be stabilized in order to enable an environmentally safe utilization or disposal. The anaerobic digestion is the standard technique to stabilize the industrial sludge. Digestion produces biogas and reduces the amount of organic matter. The amount of excess sludge production from wastewater treatment plants is continuously increasing. Therefore‚ minimization
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for water. Of China’s 640 cities‚ 300 of them are suffering from inadequate water supplies (News Service Reports). Other issues related to water shortages within this nation are the insufficient management of this resource by government‚ including wastewater management and uneven distribution of river and rainwater; inadequate public awareness of environmental protection; and the overuse of underground water. Political and Economic Issues China’s legislative work to protect the environment and its
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other federal sources (International Rivers‚ n.d.). Lastly‚ in 2001 the Santiago River had been considered an unsuitable source of water‚ thus‚ attempting to purify the water possess a threat to the public’s health‚ since the Santiago River receives wastewater from the industrial corridor of Guadalajara. The effluent‚ is directly coming from Jalisco’ urbanized regions‚ causing the El Salto falls and Santiago River to build a thick layer of white foam and a rotten eggs odor that make living in the region
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A Novel Way to Clean Wastewater By SOPHIA LI Nytimes.com Seven years ago‚ Paul Edmiston was working in his laboratory on a potential way to detect the presence of explosives. By accident‚ he created a material that acted as a powerful sponge that could absorb small organic compounds like gasoline‚ motor oil‚ and pesticides dissolved in water. Today Dr. Edmiston‚ a professor of chemistry at the College of Wooster in Ohio‚ is hoping that his invention‚ dubbed Osorb‚ will have a new commercial
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lead‚ zinc‚ copper‚ can often be found in industrial wastewater and their discharge to the environment poses a serious threat due to their acute toxicity to aquatic and terrestrial life which includes humans. As a result of increasing industrialization more heavy metals are continually released to the environment and this has prompted environmental engineers and scientists to think of better methods by which heavy metal-bearing wastewaters can be treated effectively and economically. The most
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Rodrigues et al. [26] operated the SBR for the post-treatment of the brewery wastewater under the anoxic-aeration-anoxic strategy with DO concentration of 2.8 mg/L. Nearly the same results were reported. The first-order kinetics constant k and a specific oxidation rate for NH4-N were 0.42 h-1 and 0.044-0.057 kg/(kg MLVSS∙d)‚ respectively‚ with the correlation coefficient of 0.89. According to Lateef et al. [8]‚ during dairy wastewater treatment by biological activated sludge system it was found out that
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KW | Service water | 224‚779.5 kg/hr. | Maintenance: $13‚499 /year The wastewater from oil refinery plant will store in the decant tank before go to the CPI oil/water separator process. Due to the condition if CPI separator needs the temperature around 50°C but the wastewater from oil refinery has temperature high to 107°C. Therefore the heat exchanger needs to present in this process. The amount of wastewater is 14‚000 m3day-1 so three heat exchanges need to present for separate the flow
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