a. The concentration of Zn is (8000/200000) *100 = 4% or 0.04g Zn/g solid waste
b. The solid waste spread on the pasture may bioaccumulate in the grass of the pasture (subjected to the bioremediation abilities of the grass) and enter the food chain. The entry of the heavy metal in the food chain would lead to its accumulation in the cow's viscera.
The heavy metals are toxic to the plants and animals. The bioaccumulation of zinc would directly affect the primary productivity of the grasses. Although cows can egest extra zinc with the dung, but high Zn intake is known to reduce somatic cell count in the lactating females and it also induces the immune response in the calves.
The zinc egested by the cows or the amount not taken up by the grasses would only contaminate the soil and make the soil unfit to support the growth of the vegetation.
A) zinc = 0.04g\L I need the answer for (B) please! 3.) Metal concentrations in wastewater...
I don't need the work for the first question. For that I got 1420.45 mg/L. Please answer problem 4. Thanks! 3) You need to fix your F/M ratio at 0.3 days1. You have a 1MGD plant, running at 450mg/L BOD out of the primary clarifier. Your secondary unit process is 4000m? What MLSS do you need to return in the mixed liquor? 4) For the question above, what mass of return activated sludge (RAS) per hour do you need to...
please answer both. I just need these two last questions and there due at midnight. Oxygen gas can be prepared by heating potassium chlorate according to the following equation 2KCIO3(s) *2KCI(s) + 302(g) The product gas, O2, is collected over water at a temperature of 25 °C and a pressure of 747 mm Hg. If the wet O2 gas formed occupies a volume of 6.91 L, the number of grams of O, formed is g. The vapor pressure of water...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
1)I need introduction will be different from this introduction but in the same subject and the same idea (with littel different) 2)Select the discussion ,results ,conclusion , methods and references from this search INTERNATIONAL JOURNAL OF SCIENTIFIC& TECHNOLOGY RESEARCH VOLUME 2, ISSUE 9 SEPTEMBER 2013 ISSN 2277-8616 Dyes Removal From Textile Wastewater Using 1 PREFACE 2 MATERIALS AND METHODS the largest Bangladesh, the textile industry manufacturing industries. in every stage of textile industry 2.1 Sample and Adsorbents Collection various types...
please help me answer question 1 to 3, thank you Chapter 9, Solutions, Review & Extra Credit. 2 Points for each XC correct answer; 6 points total, max. Partial Credit given. Suggestions...work in teams [it will improve the learning experience] 1. Solutions-A solution forms when a solute (the smaller quantity) dissolves in a solvent (the larger quantity). In a solution, the particles of solute are evenly distributed in the solvent. A solute may be a gas, liquid or solid. A...
Hi please can you answer 4 questions .. thanks for help Factoes hich Infuence The Rates Of Resction Name Date Prelab Question Lab Instructor Lab Section a. List the potential ehemical hazards in this experiment and tell how you wi handle them in order to make this experiment safe for you and others in the laboratory b. List the potential procedural hazards in this experiment and tell how you will handle them in order to make this experiment safe for...
What is the theoretical yield (in grams) and percent yield of your triphenylmethanol product in this experiment? (Weight of triphenylmethanol: 0.060g) BACKGROUND AND THEORY The Grignard reaction was one of the first organometallic reactions discovered and is still one of the most useful synthetically. By reacting an organohalide (usually a bromide) with magnesium in ethereal solvent, carbon becomes a nucleophile. Grignard reagents are the starting points for the syntheses of many alkanes, primary, secondary, and tertiary alcohols, alkenes, and carboxylic...