Romanian Journal of Ecology & Environmental Chemistry最新文献

Chemical characterization methods for biodegradable organic wastes with relevance for the composting process. Case study 与堆肥过程相关的可生物降解有机废物的化学表征方法。案例研究

Romanian Journal of Ecology & Environmental Chemistry Pub Date : 2021-12-17 DOI: 10.21698/rjeec.2021.218

G. Catrina, Lidia Kim, A. Serbanescu, Georgiana Cernica, C. Bumbac, Marius Sburlis

引用次数: 0

Options to improve the coagulation process operation in a drinking water treatment plant. Case study 改善饮用水处理厂混凝工艺操作的选择。案例研究

Romanian Journal of Ecology & Environmental Chemistry Pub Date : 2021-12-17 DOI: 10.21698/rjeec.2021.214

A. Pacala, Maria Laura Samonid, B. Murariu

引用次数: 0

An overview of methods used for quantification of heavy metal contents in vegetal samples 植物样品中重金属含量定量方法综述

Romanian Journal of Ecology & Environmental Chemistry Pub Date : 2021-12-17 DOI: 10.21698/rjeec.2021.201

Gina Vasile Scăețeanu, Rodica Maria Majdar, A. Moț

引用次数: 2

Assessment of environmental pollution level caused by shipbuilding industry 船舶工业环境污染水平评价

Romanian Journal of Ecology & Environmental Chemistry Pub Date : 2021-12-17 DOI: 10.21698/rjeec.2021.213

G. Serban, M. Niculescu, V. Iancu, I. Paun, F. Pirvu, Cǎtǎlin Manea, F. Chiriac, G. Vasile

引用次数: 2

Ranking the dietary treatments of broiler chickens in order to reduce nitrogen pollution of the environment 为减少环境氮污染，对肉鸡日粮处理进行排序

Romanian Journal of Ecology & Environmental Chemistry Pub Date : 2021-12-17 DOI: 10.21698/rjeec.2021.212

G. Vasile, Anda Tenea, Ecaterina Anca Serban, G. Catrina, V. Badescu, P. A. Vlaicu

引用次数: 0

Physical-chemical properties of the surface water from shallow lakes of the Matita-Merhei Unit, Danube Delta, Romania: current state and environmental significance 罗马尼亚多瑙河三角洲matta - merhei单元浅水地表水的物理化学性质:现状和环境意义

Romanian Journal of Ecology & Environmental Chemistry Pub Date : 2021-12-17 DOI: 10.21698/rjeec.2021.203

I. Catianis, D. Grosu, A. Constantinescu, Laura Tiron Duţu, O. Dobre

{"title":"Physical-chemical properties of the surface water from shallow lakes of the Matita-Merhei Unit, Danube Delta, Romania: current state and environmental significance","authors":"I. Catianis, D. Grosu, A. Constantinescu, Laura Tiron Duţu, O. Dobre","doi":"10.21698/rjeec.2021.203","DOIUrl":"https://doi.org/10.21698/rjeec.2021.203","url":null,"abstract":"This study aimed to assess the water quality of certain lakes (Bogdaproste, Trei Ozere and Radacinos) belonging to the Danube Delta, Romania. Deltaic ecosystems are subject to natural and man-made environmental stressors. If in the past these ecosystems were largely threatened by eutrophication and organic/inorganic pollution, nowadays, we must focus on hydro morphological impact. This refers to the physical character and water content of the aquatic environment, impoundment (dams and flood gate), channelization and embankments, as well as clog/siltation of lakes. Environmental parameters are those physical, chemical and biological indicators used to characterize a freshwater body, and, which vary in time and space. In this regard, 44 water samples were collected in the dry season from the three lakes, for analysis of physical-chemical quality indicators. A series of physical (T, EC, TDS, turbidity, TSS, transparency) and chemical parameters (pH, DO, nutrients, SiO2, TOC, SO42-, ORP, technophilic elements) were considered. The results obtained in the physical-chemical analyses revealed that the majority of parameters were found in line with enforcing environmental regulations. Despite that, P-PO43- and Cd concentration results of some samples were found above certain permissible limits set by the normative. Probably, these inadvertences can be associated with local conditions of the transitional deltaic environment. Further analysis is required conducting repeated measurements with the same question, meaning a routine monitoring, especially P-PO43- and Cd. Finally, it was concluded that the results of this study showed a good quality of water in investigated lakes that did not pose potential health and environmental problems related to the biota.","PeriodicalId":21370,"journal":{"name":"Romanian Journal of Ecology & Environmental Chemistry","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84545587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The influence of toxic metals As, Cd, Ni and Pb on nutrients accumulation in Mentha piperita 有毒金属As、Cd、Ni和Pb对薄荷养分积累的影响

Romanian Journal of Ecology & Environmental Chemistry Pub Date : 2021-12-17 DOI: 10.21698/rjeec.2021.217

C. Dinu, G. Vasile, Anda Tenea, C. Stoica, S. Gheorghe, Ecaterina Anca Serban

{"title":"The influence of toxic metals As, Cd, Ni and Pb on nutrients accumulation in Mentha piperita","authors":"C. Dinu, G. Vasile, Anda Tenea, C. Stoica, S. Gheorghe, Ecaterina Anca Serban","doi":"10.21698/rjeec.2021.217","DOIUrl":"https://doi.org/10.21698/rjeec.2021.217","url":null,"abstract":"Medicinal plants are, for a considerable part of the population, an important source of treatment for certain diseases. They contain essential nutrients for the human body such as magnesium, iron , and zinc. The present study shows the influence of the addition of As, Cd, Ni, Pb on mineral nutrients in different organs of Mentha piperita. The experiments were carried out in the laboratory for a period of three months (May-July). Mentha piperita plants were AsCd and AsCdNiPb exposed up to final concentrations corresponding to the soil intervention threshold according to Romanian Order no.756/1997 (25 mg/kg As, 5 mg/kg Cd, 150 mg/kg Ni and 100 mg/ kg Pb). Simultaneously with these experiments, a control experiment (M) was performed. To evaluate the effect of the addition of AsCd and AsCdNiPb on the accumulation and transfer of Ca, Cr, Cu, Mn, Mo, Fe and Zn, the transfer coefficient (TC), the translocation factor (TF), and the enrichment factor (EF) were calculated. A higher concentration of Ca, Cr, Cu, Fe, Mn, Mo, and Zn was observed especially in the mint root in the experiments in which AsCdNiPb was added compared to those in which only AsCd was added. The AsCdNiPb addition did not influence the translocation of micro and macronutrients from the root to the aerial (edible) parts of the plant. In the case of the AsCd, addition, the translocation of zinc from the root to the aerial parts (leaves and stem) of the plant was increased.","PeriodicalId":21370,"journal":{"name":"Romanian Journal of Ecology & Environmental Chemistry","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81793954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In vitro effect of salinity and pH on Fusarium sp., the causal agent of sweet-potato root rot 盐度和pH对甘薯根腐病病原菌镰刀菌的影响

Romanian Journal of Ecology & Environmental Chemistry Pub Date : 2021-12-17 DOI: 10.21698/rjeec.2021.205

L. Barbu, Oana Alina Boiu Secoia

引用次数: 0

A study regarding the parameters that influence the growth rate of Salix alba 影响白柳生长速率的参数研究

Romanian Journal of Ecology & Environmental Chemistry Pub Date : 2021-12-17 DOI: 10.21698/rjeec.2021.210

G. Murariu, R. Enescu, D. Vasile, L. Dincă, G. Mocanu, D. Munteanu

{"title":"A study regarding the parameters that influence the growth rate of Salix alba","authors":"G. Murariu, R. Enescu, D. Vasile, L. Dincă, G. Mocanu, D. Munteanu","doi":"10.21698/rjeec.2021.210","DOIUrl":"https://doi.org/10.21698/rjeec.2021.210","url":null,"abstract":"The inventory and evaluation of growth rates for afforested surfaces is extremely important in estimating production levels and in determining the wood quantities that can be harvested. The present research was realized in southeast Romania, on a surface that contains 375h of afforested fields. The monitored surfaces are situated in Hanu-Conachi Independenta Forest, at a relatively low altitude. The study took into account only the surfaces afforested with willow (Salix alba) and extended between 2010 and 2015. The afforested surfaces’ consistency and age were evaluated based on direct observations and measurements. The used numerical analysis on different optimization methods was selected from amongst the most used series from the specialty literature. Our results have shown that evaluations of estimated production growth rates can vary significantly when different statistical analyses and numeric methods are used. By using numerical optimizing models, computer simulations can offer precise estimations regarding growth rates, and consequently, for the efficiency of a given forest inventory. Common numerical interpolation methods or the usage of neuronal networks do not always lead to consistent results. Specific numeric methods are preferable for a better evaluation of growth rates and current inventory. In addition, investments in computer simulation methods and software should be encouraged in order to reach a permanent inventory, improve the efficiency of exploitation operations, and sustain environmental protection.","PeriodicalId":21370,"journal":{"name":"Romanian Journal of Ecology & Environmental Chemistry","volume":"146 5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91122539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Moving forward sustainable solutions for VOCs biotrickling filtration through co-immobilised microorganisms 通过共固定化微生物推进VOCs生物滴滤的可持续解决方案

Romanian Journal of Ecology & Environmental Chemistry Pub Date : 2021-12-17 DOI: 10.21698/rjeec.2021.207

G. Soreanu, M. Diaconu, S. Maier, I. Volf, I. Cretescu

{"title":"Moving forward sustainable solutions for VOCs biotrickling filtration through co-immobilised microorganisms","authors":"G. Soreanu, M. Diaconu, S. Maier, I. Volf, I. Cretescu","doi":"10.21698/rjeec.2021.207","DOIUrl":"https://doi.org/10.21698/rjeec.2021.207","url":null,"abstract":"This study is moving forward with some available options for upgrading the biotrickling filters (BTFs) treating volatile organic compounds (VOCs) in air, in the light of lowering their greenhouse gas(GHG) emissions. One of such options refers to the addition of the microalgae component to the biological matrix involved in such systems, by (co)immobilization, for the capture of the carbon dioxide issued from the VOCs biodegradation and potentially contributing to the overall VOCs removal performance. Particularly, alginate beads with (co) immobilized microorganisms (microorganisms isolated from commercial compost and microalgae Arthrospira platensis PCC 8005) are for the first time tested for this purpose, as follows: beads with entrapped compost-based microorganisms and attached microalgae (BTF-I); beads with an entrapped mixture of microalgae and compost-based microorganisms (BTF-II). Although both options provided promising performances in treating air contaminated with ethanol (as a model VOC in this study), the last option exhibited lower CO2 emissions and higher packing bed durability, being more prone to further development and implementation.","PeriodicalId":21370,"journal":{"name":"Romanian Journal of Ecology & Environmental Chemistry","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81661186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1