Carbonatation precipitate – origin, separation and uses

2015 ◽  
pp. 434-442 ◽  
Author(s):  
Evzen Šárka ◽  
Zdenek Bubník ◽  
Vladimír Pour

Managers and researchers are looking for new systems with minimum consumption of lime e.g. ultrafiltration. Nevertheless liming and carbonatation are still an important part of juice purification in the sugar industry. The complex process is influenced by many parameters such as lime addition, polysaccharides content and their composition, temperature, mixing intensity, recycling in juice purification etc. Carbonatation precipitate as well as the role of adsorbing nonsugars from the beet is connected with sedimentation and filtration characteristics and seems to be a promising raw material in many industries. Key parameters of the carbonatation lime as a by-product of sugar manufacture are size of crystals and aggregates together with polymorphism of the CaCO3 both for the filtration and for follow-up industrial applications. The common polymorph of carbonatation precipitate is calcite but also needle-like aragonite precipitates were found when deteriorated beet was processed. Carbonatation lime may be used as fertilizer, filler in adhesives or in plastics, and in many ecologic uses. It could be concluded that functional materials based on carbonatation lime is a challenging perspective, however, the extensive knowledge in carbonatation process is of primary importance.

Toxins ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 321
Author(s):  
Dobri Ivanov ◽  
Galina Yaneva ◽  
Irina Potoroko ◽  
Diana G. Ivanova

The fascinating world of lichens draws the attention of the researchers because of the numerous properties of lichens used traditionally and, in modern times, as a raw material for medicines and in the perfumery industry, for food and spices, for fodder, as dyes, and for other various purposes all over the world. However, lichens being widespread symbiotic entities between fungi and photosynthetic partners may acquire toxic features due to either the fungi, algae, or cyano-procaryotes producing toxins. By this way, several common lichens acquire toxic features. In this survey, recent data about the ecology, phytogenetics, and biology of some lichens with respect to the associated toxin-producing cyanoprokaryotes in different habitats around the world are discussed. Special attention is paid to the common toxins, called microcystin and nodularin, produced mainly by the Nostoc species. The effective application of a series of modern research methods to approach the issue of lichen toxicity as contributed by the cyanophotobiont partner is emphasized.


Author(s):  
Samarra Mongi Kaabi ◽  
Ahmad Nasser Madkhali ◽  
Naif Hussain Alqahtani ◽  
Ammar Adel Bakhsh ◽  
Yousef Hussain Alharthi ◽  
...  

Computed tomography (CT) of the chest has been previously reported as an efficacious approach for the early diagnosis and suspicion of COVID-19 infection, as diagnosis with other modalities is usually time-consuming and cannot detect the disease within the early stages. Many pulmonary manifestations have been previously observed under CT imaging of the chest. All of them have been linked with the different stages of the disease, indicating their abilities to diagnose and follow-up these patients.This present literature review aims to discuss the role of CT imaging of the chest in COVID-19 infections and it also aims to elaborate the common pulmonary manifestations that can be frequently observed to help with the diagnosis and prognosis of the disease. Moreover, ground-glass opacities (GGOs) have been reported among studies in the literature to be the most common findings as they remain the earliest among other diseases. The literature review also aims to invistagate whether GGOs can fade away or progress to consolidate in order to decide the prognosis of the disease and to identify the severity of cases. Consolidations have also been previously stated among studies in the literature as frequent pulmonary manifestations affecting patients with COVID-19 infections and are estimated to be present in 2-63% of patients with COVID-19 infections. Other pulmonary manifestations might also include bronchiectasis, lymphadenopathy, nodules, pleural effusion or thickening, and halo sign.


2017 ◽  
pp. 29-32 ◽  
Author(s):  
Kazm Eber Özba ◽  
Özen Özboy Özba

The sugar beet industry produces considerable amounts of organic waste and by-products. Sugar beet pulp (SBP) is the residue that remains after sugar extraction. SBP is a lignocellulosic by-product of the sugar industry and generally used as animal feed at relatively low price. Instead of cattle feeding, SBP can be used as a raw material for industrial applications because it is low-cost and available in large amounts. Biomass is a clean and renewable energy source. The use of SBP for the production of ethanol, methanol, single cell protein, biofuels etc. is economically very attractive. This literature review evaluates the use of SBP as biomass.


2016 ◽  
Vol 02 (03) ◽  
pp. 311-326
Author(s):  
Zhang Chun

Thanks to their huge potential and effective toolkit, the Group of Twenty (G20) countries have exhibited strong resolve to implement the United Nations 2030 Agenda for Sustainable Development (UN 2030 Agenda). Their joint endeavor will, in turn, facilitate the transition of the G20 from an ad hoc mechanism to a long-term institution for sustainable development. With regard to the remaining gap of political willingness among countries and the absence of behavioral rules in implementing the Agenda, the coordinating authority of the G20 should be strengthened and the existing institutions reformed. Specific measures must be taken, which include: (a) strengthening the coordinating capability of the Development Working Group under the G20 (G20-DWG); (b) making the G20 an example for the rest of the world in realizing the Agenda; (c) calling for an upgraded version of the common but differentiated responsibility (CBDR) principle; (d) strengthening coordination with related organizations for the follow-up and review mechanisms of the Agenda; (e) enhancing public awareness of those post-MDG targets and lost-targets to strengthen the central role of the G20 in implementing the Agenda; and (f) making the G20 a long-term leader in supporting development rights of the developing world.


2021 ◽  
Vol 03 (03) ◽  
pp. 134-147
Author(s):  
Najwa N. A SHKOKANI

The majority of societies on Earth suffered a lot physically, psychologically, intellectually and financially during the Corona Covid-19 epidemic in the period 2020-2021, which surprised everyone with the speed and severity of its spread and lethality all over the world, and with the severity of the preventive measures that forced people to adhere to it. Despite all the crises that accompanied it or resulted from it, the scholars of Sharia, despite their great efforts in the field of fatwas that have taken place, nevertheless the common Muslims felt their lack of a pioneering and effective role for them, for they are the scholars of the ummah. And their deeds rise to the level appropriate to the greatness of Islam and lead it to serve mankind in all circumstances, in all societies and at all times. So did they take advantage of the circumstances and in the jurisprudence councils, legal universities, Islamic think tanks and others, hastened to meet and consult periodically and intensely commensurate with the momentum of the developments that took place in that event and the pursuit of the event in all its aspects and dynamics, and has the effect of this appeared in several aspects in Islamic societies and elsewhere? The Holy Qur’an and the Noble Prophet’s Sunnah have revealed this pioneering role by the prophets and messengers, saints and scholars. Scholars of true law at all times are the heirs of the prophets, and enjoining good and forbidding evil depends on their guidance and diligence. Likewise, that role is not hidden in the wonderful models launched in Islamic societies throughout its prosperous history in all aspects of life, and in all the circumstances and conditions that it has gone through, including calamities, tribulations, misfortunes, strife, diseases and epidemics, which had the greatest positive impact on the Ummah’s awareness and knowledge of good behavior in it. To prevent the largest proportion of the losses in the lives of people and the good of the country. This study comes by following the descriptive and analytical method to highlight the aforementioned by introducing the Corona epidemic, and the inductive approach by exploring the pioneering role of true Islamic law scholars in epidemics by referring to the sources of legislation with evidence of that throughout Islamic history, then searching for that application in this era, following the field approach Al-Estebyani, with investigating their positions during that epidemic. The most prominent results after the research were: That Islamic scholars have the greatest importance that goes beyond the intellectuals, thinkers, and even politicians, and they are at the forefront of society in researching and uncovering how to deal with epidemics according to Sharia evidence, using all means and techniques, both ancient and modern. And adopting educational, informational and advocacy methods in generalizing how people deal with the epidemic; And to highlight the faith role that achieves security, tranquility, and satisfaction with the judgment of God, adhering to the teachings of Islam in that event and responding to the responsible represented by the intellectual, political, health and other systems, and they also have a great impact on societies when they rush to issue fatwas to guide individuals and governments in how to deal with this pandemic, and not to stop Then, it is imperative to constantly and diligently follow up on the developments of the epidemic with the permanent meeting of fatwa councils locally and internationally, in order to change the fatwas and procedures in line with the new circumstances. That Muslim scholars have been the pioneering and guiding reed throughout history represented by models that elevated themselves, their nation, and humanity as well.


2020 ◽  
Vol 8 (9) ◽  
pp. 4310-4316
Author(s):  
Rajni Kanojiya ◽  
Shreyes. S ◽  
Yogitha Bali M.R

Background: Stanyakshaya is the common problem noticed in about 40% patients in our clinical practice. Due to adaptation of Western culture, women get exposed to stress and strain. Lactation is the process as-sociated with psychosomatic condition and lifestyle. Breast milk is the perfect food for a normal neonate. It is the best gift a mother can give her baby. Breast feeding is the ideal form of infant feeding and is cru-cial for lifelong health and wellbeing. Design: This was a single pilot study. 10 patients(lactating mothers, both primi and multi gravida) who ful-filled the eligibility criteria were selected for the study and the assessments were made before the treatment on the 1st day and after the treatment on the 30th day and follow up was done on 20th day after the comple-tion of treatment. Intervention: Karpasabeejachurna (6gms) was administered with lukewarm water as the Anupana after food twice a day for one month and follow up carried out on 20th day after the completion of treatment. Results: Karpasabeejachurna showed statistically significant results in the Stanamlanata, Stana/milk ejec-tion, breast feeding, weight of the baby and breast engorgement with p<0.001. Conclusion: Karpasabeejachoorna showed to be effective in increasing the Stanya and it is a Stan-yajanakadravya.


2010 ◽  
pp. 561-565
Author(s):  
Edgar F. Castillo ◽  
Adolfo L. Gómez ◽  
Diego Cobo ◽  
Carlos Aguirre

Nowadays, the Colombian sugar industry is involved in an expansion process, mainly related to the diversification of final products. In this way, since 2005 five ethanol distilleries have been running, covering just 65% of total ethanol demand. The distilleries were designed coupled with a composting plant, based on vinasses and carbonatation sludge from the sugar factory. Both distilleries and composting plants show many features which make them a special case in the ethanol market, so they produce a maximum of 3 L vinasse/L ethanol. Besides, in all cases, the thermal and electrical power requirements in the ethanol plant are supplied by the sugar factory. In this paper, a brief description of technological features of the typical process configuration followed by the Colombian sugar industry is shown. It comprises the steam consumption distribution by sections, the common configuration of the heat exchanger network (HEN) developed for bleed vapor usage and the role of energy self-sufficiency of the factory played by the bagasse quality. A set of possible scenarios for improving energy efficiency in a selected sugar factory which comprises a modified HEN can be formulated, including a revamping of the existing boiler and finally a new boiler operating at higher pressure. Based on the previous information, the state of the main Colombian cogeneration projects based on sugarcane and its potential impact on the national energy supply is shown. Finally, the paper describes how Colombian governmental requirements for cogeneration plants are trying to establish a legal framework for this novel industrial activity in the country.


2019 ◽  
Vol 144 (5) ◽  
pp. 655-660 ◽  
Author(s):  
Ahmad Ibrahim ◽  
Shefali Chopra

Succinate dehydrogenase (SDH)–deficient gastrointestinal stromal tumor (GIST) is a subset of wild-type GIST that constitutes approximately 10% of gastric GISTs. SDH-mutated GISTs lack mutations in the proto-oncogene receptor tyrosine kinase (also known as KIT, c-KIT, or CD117) or platelet-derived growth factor receptor α (PDGFR-α). These tumors have female predilection, affect children and young adults, and have a spectrum of behavior from indolent to progressive. These tumors have characteristic morphologic features including multinodular architecture, multiple tumors, lymphovascular involvement, and occasional lymph node metastasis. They can be seen in patients with Carney triad or Carney-Stratakis syndrome. Although a mutation in any one of the SDH subunits can be pathogenic, deficiency of a single subunit leads to loss of detectable SDH subunit B by immunohistochemistry, enabling a convenient, tissue-based screening method. The prognosis and the clinical course of these tumors is different from that of KIT- or PDGFR-α–mutated GISTs. Surgical management is considered the main line of treatment. SDH-mutated GISTs do not respond well to the common targeted therapy, with no objective tumor response to imatinib. The role of the pathologist in diagnosing these cases is imperative in management and subsequent follow-up.


2016 ◽  
Vol 01 (01) ◽  
pp. 028-032
Author(s):  
Guru Kumar C ◽  
Phani kotewsar Rao

AbstractBACKGROUND: DES has gained significant importance in coronary interventions due to its superiority of decrease in target vessel revascularization when compared to BMS. In this DES era, we want to study the role of BMS as it is more economical.MATERIAL AND METHODS: We have analyzed acute coronary syndrome (ACS) and chronic stable angina patients who underwent BMS implantation between January 2011 to March 2011 under government health scheme of Andhra Pradesh.RESULTS: We retrospectively analyzed the cardiac events in 4181 BMS implanted patients. 1938 (46.4%) patients were followed for 365 days. More men than women with 40 to 69 years were there. ST elevation MI was the common presenting symptom in 1902patients (45.49%). 1881 patients (44.98%) were diabetic. Single vessel disease was more common 2522(60.32%), Multivessel disease was seen in 210 patients (5.02%). LAD being the common vessel involved followed by RCA. Primary PCI was done in 320 patients(7.65%).Out of 4181 patients, 9366 lesions were stented with BMS, stainless steel BMS was used in 4988(53.26%) and cobalt chromium BMS was used in 4378 (46.74%) patients.Out of 4181 patients, 1938 patients (46.4%) were followed up of 1yr, post PCI 686 (35.4%) patients had worsening angina, 226(11.66%) patients had worsening heart failure, 17 (0.88%) patients had repeat STEMI, 11(0.56%) patients had repeat NSTEMI, 16(0.82%) patients had subacute stent thrombosis, 27(1.39%) patients developed late stent thrombosis, 51 patients (2.63%) underwent repeat target vessel revascularization(TVR). 52 (2.68%) patients died due to cardiac cause with in one year of follow up.CONCLUSIONS: Our study show that even in present era of DES, BMS implantation is effective and associated with less mortality and less stent thrombosis and less chances of target vessel revascularization with the limitations (as it was telephonic follow up).


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