The present research involves removing copper and nickel ions from synthesized wastewater by using a simple, cheap, cost-effective, and sustainable activated green waste tea residue (AGWTR) adsorption coupled with electrocoagulation (ADS/EC) process in the presence of iron electrodes. By considering previous studies, their adsorbents used for treating their wastewaters firstly activate them by applying either chemicals or activating agents. However, our adsorbent was prepared without applying neither chemicals nor any activating agents. The operating parameters such as pH, hydraulic retention time, adsorbent dose, initial concentration, current density, and operating cost for both metals were optimized. In ADS/EC, the removal efficiency was obtained as 100% for copper and 99.99% for nickel ions. After the ADS/EC process, Fourier transform infrared (FT-IR) spectroscopy, Scanning Electron Microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDS) analysis were used to characterize the adsorbent green waste tea residue. The adsorption isotherm and kinetic model results showed that the Langmuir and the pseudo-second-order were well-fitted to the experimental adsorption data better than the Freundlich and pseudo-first-order models for both Cu2+ and Ni2+ with their maximum adsorption capacity of 15.6 and 15.9 mg g−1, respectively. The above results give an option to recycle the metal-based industrial effluents, tea industry-based wastes, enabling a waste-to-green technique for adsorbing and removing the heavy metals and other pollutants in water.
In Myanmar, two expatriates have started infected by COVID-19 pandemic on 23 March in 2020 and COVID-19 period was divided into the two periods by the data of patients, from starting July 29, no more infected people found till August 19. Myanmar citizen think that there will be no more new COVID-19 cases, they started running their daily work, not following precaution methods. Unfortunately, the number of patients increased more and more, starting from 20th August. The period between 23rd March and 19th August was regarded as COVID-19 first wave and the period starting from 10th August was COVID-19 second wave by Government. In Myanmar, numbers of developed city are fewer than rural townships. Infrastructures of townships are same and most people, living in rural townships are not rich and they didn’t have saving money in Banks and they are depending on their monthly salaries. During pandemic period, general workers faced with unemployment problem and difficulty in daily expenses. Some volunteers helped daily expenses to poor people in COVID-19 first wave. In second COVID-19 wave, volunteers cannot help many families. This paper focused on COVID-19 pandemic impact on Public psychological consequences, Economy, Educational dimension and the prospects after pandemic.
COVID-19 is well known as “Global Pandemic” and it is a dreadful disaster on the world. However, on the other hand, COVID-19 pandemic becomes study issues for many researchers and their juniors and followers. Moreover, some negative attitudes of some Myanmar people to Myanmar National Soldiers become positive attitudes of them. Myanmar has many conflicts between some people who stand with NLD (National League for Democracy) and some people who stand with Myanmar Military. On Social Media pages, Myanmar public have quarreled and they are still quarrelling even in public areas and moreover family members become conflicts due to their favorite organization and poor knowledge of politics. Myanmar Tradition was so gentle and polite and polite people of Myanmar never abused other people and they had extremely tolerance each other before social media did not share rumors of Myanmar Military and Government. This conflicts are severe more and more and it is becoming bad situation of unity of Myanmar. Unfortunately, COVID-19 pandemic appeared as global disasters and Myanmar Military was ready to support public by taking their responsibilities. Military Quarantine Centers for public are so systematical and patients and their families don’t need to worry about their medical care services, medicines and their daily meals and moreover for their necessary daily items are ready placed there. COVID-19 is so cruel warfare for every country and on the other hand, this warfare could reform “Unity Damage” of Myanmar. 57% of negative attitudes of some Myanmar people have been decreased. This study aimed to reform “Noble Unity” of Myanmar and some conditions of COVID-19 were recorded to protect fake informations of COVID-19 periods by some social media pages. The researchers hope “Developed Myanmar” with “Noble Unity and Peace”.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.