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Chapter 11 of 13
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Bioremediation

CBSE · Class 12 · Biotechnology

Flashcards for Bioremediation — CBSE Class 12 Biotechnology. Quick Q&A cards covering key concepts, definitions, and formulas.

61 questions84 flashcards5 concepts

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A comprehensive flowchart illustrating the primary and secondary (biological) treatment stages of a sewage treatment plant, including key components and processes like filtration, sedimentation, aerat
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84 Flashcards
Card 1Introduction to Bioremediation

What is bioremediation?

Answer

Bioremediation is the process of using living organisms to remediate or solve damage caused by chemical toxicants. Microorganisms and plants can help remove, degrade, or alter harmful pollutants in so

Card 2बायोरेमेडिएशन का परिचय

जैव उपचार क्या है?

Answer

जैवोपचार (Bioremediation) रासायनिक विषाक्त पदार्थों से होने वाले क्षति को दूर करने या हल करने के लिए जीवित जीवों का उपयोग करने की प्रक्रिया है। सूक्ष्मजीव और पौधे मिट्टी और पानी में हानिकारक प्रदूषकों

Card 3अपशिष्ट जल उपचार

मलजल क्या है?

Answer

मलजल (Sewage) किसी घर, समुदाय या उद्योग का अपशिष्ट जल होता है। इसमें मानव मल, प्रक्षालन जल, औद्योगिक अपशिष्ट, कृषि अपशिष्ट और पशुधन अपशिष्ट शामिल होते हैं और इसे निर्वहन से पहले उपचारित करना पड़ता है।

Card 4Wastewater Treatment

What is sewage?

Answer

Sewage is wastewater from a home, community, or industry. It contains human waste, wash water, industrial waste, agricultural waste, and livestock waste, and it needs treatment before discharge.

Card 5Wastewater Composition

What is the composition of municipal sewage?

Answer

Municipal sewage is approximately 99% water and 1% inorganic and organic matter in suspended and soluble forms. This small solid fraction contains the main pollutant load.

Card 6अपशिष्ट जल संघटन

नगरपालिका सीवेज की संरचना क्या है?

Answer

नगरपालिका सीवेज में लगभग 99% पानी और 1% अकार्बनिक और कार्बनिक पदार्थ निलंबित और घुलनशील रूपों में होते हैं। इस छोटे ठोस अंश में मुख्य प्रदूषक भार होता है।

Card 7BOD परीक्षण

मानक BOD परीक्षण शर्त क्या है?

Answer

बायोकेमिकल ऑक्सीजन डिमांड को सीवेज के नमूने को 20°C पर पाँच दिनों तक रखकर मापा जाता है। फिर सूक्ष्मजीवों द्वारा उपयोग की जाने वाली ऑक्सीजन को घुलित ऑक्सीजन में कमी से मापा जाता है।

Card 8BOD Test

What is the standard BOD test condition?

Answer

Biochemical Oxygen Demand is measured by incubating the sewage sample at 20°C for five days. The oxygen used by microorganisms is then measured from the decrease in dissolved oxygen.

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Frequently Asked Questions

What are the important topics in Bioremediation for CBSE Class 12 Biotechnology?
Bioremediation covers several key topics that are frequently asked in CBSE Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Bioremediation — CBSE Class 12 Biotechnology?
Understand the core concepts first, then work through the 61 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many flashcards are available for Bioremediation?
There are 84 flashcards for Bioremediation covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

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