Acid Waste Neutralization
Acid Waste Neutralization - Related Videos
03:26
Acids, Bases and Neutralization Reactions
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2020
An acid-base reaction is one in which a hydrogen ion, H+, is transferred from one chemical species to another. Such reactions are of central importance to numerous natural and technological processes, ranging from the chemical transformations within cells or lakes and oceans to the industrial-scale production of fertilizers, pharmaceuticals, and other substances essential to the society. There are several ways of defining an acid. In the context of aqueous solutions, an acid is a substance...
01:27
Acids, Bases and Neutralization Reactions
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2023
Acids and bases play several important roles in biology. The pH of a biological system can significantly impact the function of biological molecules, including enzymes, proteins, and nucleic acids. For example, enzymes have optimal pH ranges for their activity, and changes in pH can denature or alter their structure, affecting their function. Acids and bases also play a crucial role in cellular signaling and communication. The pH of the extracellular fluid around cells can influence the...
04:28
Proper Waste Disposal
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2023
Robert M. Rioux and Taslima A. Zaman, Pennsylvania State University, Pennsylvania, PA Users are responsible for the proper disposal of the waste generated during their work. Improper waste disposal may severely endanger public health and/or the environment. The handling of hazardous waste must be regulated from the moment of generation until its disposal at its offsite final destination facility. A waste management system must be devised before work begins on any laboratory activity. Users...
03:07
Modification of the Treatment Methods for Wasting Marmoset Syndrome with Tranexamic Acid and Supportive Measures
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Cited by 1 •
2024
Here, we describe the modified treatment methods for wasting marmoset syndrome (WMS, also known as inflammatory bowel disease (IBD)-like disease) with tranexamic acid. We also present how to administer the therapeutic agents orally, subcutaneously, and intravenously.
14:48
Acid and Base Concentrations - Student Protocol
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2020
Source: Smaa Koraym at Johns Hopkins University, MD, USA Preparation of ~0.1 M NaOHExpand In the first part of the lab, you will use a 50% w/w solution of NaOH to prepare 500 mL of ~0.1 M. The 50% w/w NaOH is indicative of its weight ratio. For example, if the instructor prepared 150 mL of the 50% w/w NaOH solution, then 150 g of NaOH was dissolved in 150 g of water, and the total weight of the solution is 300 g. To begin, put on the appropriate personal protective equipment,...
FAQs
The core reaction consumes hydrogen ions from the acidic waste when an alkaline material is added. This acid-base reaction produces water and salts, reducing the solution’s acidity and corrosiveness. Because the chemical composition of the waste determines how much alkalinity is required, operators must add the reagent incrementally rather than relying on a single predetermined amount.
Neutralization can release heat as the acid-base reaction proceeds. If alkaline material is added too quickly, localized heating may become intense enough to promote splashing or boiling, especially while the waste is being mixed. Controlling the addition rate and monitoring temperature helps distribute the reaction more evenly and reduces the risk of a sudden, poorly controlled response.
The alkaline material must be suitable for the waste and added only until the target pH range is reached. Excess reagent can shift the solution from acidic to excessively alkaline, creating a new handling or disposal problem. Monitoring pH during addition provides an endpoint that balances reduced corrosiveness with avoidance of unnecessary alkalinity.
A suitable alkaline material is introduced gradually into the acidic waste while the mixture is stirred. Operators monitor pH throughout the reaction and control temperature and addition rate as the chemistry changes. Once the pH reaches the acceptable range, the treated material can proceed to the applicable handling or disposal pathway rather than receiving more reagent.
Three conditions are especially important: reagent addition rate, temperature, and pH. Addition rate influences how rapidly the reaction occurs, temperature indicates whether heat is accumulating, and pH shows progress toward the treatment endpoint. Observing these variables together helps prevent splashing, boiling, incomplete treatment, or excessive alkalinity during laboratory or industrial operations.
The treatment supports safer waste management by reducing the corrosiveness of acidic effluents before handling or disposal. It also helps protect plumbing and treatment systems from damage associated with unsuitable acidity. In environmental terms, bringing waste into an acceptable pH range can reduce the impact of acidic discharges, linking routine chemical control with broader waste-management goals.