[Soda Ash Knowledge] Question of the Day (121) February 1, 2010
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Daily Question (121), February 1, 2010. Please hide your replies; replies that are not hidden will generally not be graded. Edited posts will not be graded. Specific hiding method: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 The questions in this issue are taken from the book “Question Bank for Technical Workers’ On-the-Job Training – Operators in Soda Ash Production”. Electronic version of the book can be downloaded here: http://bbs.hcbbs.com/thread-13140-1-2.html 1. The concentration of ammonia (NH3) in the gas exiting the calcium-removal and ammonia-purification unit should be less than ________, while the CO2 level should be _______.</ 2. The calcium removal section of the calcium removal tower generally has ______ large bacterial mats, while the upper ammonia purification section generally has ______.
1. The ammonia (NH3) content in the exhaust gas from the calcium-removal and ammonia-removal unit should be less than 300 mg/m^3, with CO2 content below 1.2%. 2. The calcium removal section of the calcium removal tower generally has 5 large bacterial caps, while the ammonia purification section at the top usually has 3.
1. 300 mg/m³; below 1.2% 2. 5, 3
1. 300 mg/m³, 1.2% or less. 2. 5, 3.
1# 9067jxhuas 1.300mg/m3, below 2.2%: 2.5 items, 3 items
1. 300mg/m3, below 1.2% 2. 5 pieces 3 pieces
300 1.2 5 pieces 3 pieces
1. The ammonia (NH3) content in the gas exiting the calcium-removal and ammonia-removal unit should be below __300 mg/m3______, and the CO2 content should be below 1.2%____. 2. In the calcium removal section of the calcium removal tower, there are generally __5__ large bacterial mats; in the ammonia removal section at the top, there are usually ___3___.
1. 300 mg/m3 2. Below 1.2% 3. 5 pieces 4. 3 pieces
1. 300 mg/m³, below 1.2% 2. 5, 3
1. 300 mg/m³, below 1.2% 2. 5, 3