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Featured researches published by Alīna Neščerecka.


Latvian Journal of Chemistry | 2012

BIOBUTANOL PRODUCTION FROM AGRICULTURAL WASTE: A SIMPLE APPROACH FOR PRE-TREATMENT AND HYDROLYSIS

Linda Mezule; Kristīna Tihomirova; Alīna Neščerecka; Talis Juhna

One of the main concerns regarding extensive production of biobutanol has been associated with the high costs of the substrate (preparation of fermentable sugars) and the relatively low tolerance of Clostridia to butanol. In this study a simple, mild approach was tested to obtain fermentable sugars from agricultural waste. Giant hogweed and hay was pre-treated with simple boiling and enzymatically hydrolysed. The results demonstrated that after adaptation of the genus Clostridium bacteria to the new substrate, the growth kinetics and sugar consumption of these bacteria were similar to the ones obtained in traditional culture media. Samazinoties pasaules naftas rezervēm, arvien lielāka uzmanība tiek pievērsta alternatīvās enerģijas ieguves veidiem. Viena no alternatīvām degvielām var būt biobutanols, ko fermentācijas laikā dabiski veido klostrīdiju ģints baktērijas. Līdz šim par vienu no kavējošiem aspektiem biobutanola plašākai lietošanai tika uzskatītas salīdzinoši dārgās ražošanas un substrāta izmaksas. Pētījumā parādīts, kā iespējams iegūt biobutanolu, izmantojot pārtikai nepiemēroto biomasu (siens, latvāņi). Procesa vienkāršošanai un izmaksu samazināšanai tradicionālās ķīmiskās un augstspiediena priekšapstrādes un hidrolīzes tehnoloģijas tika aizvietotas ar vienkāršu substrāta vārīšanu un enzimātisko hidrolīzi. Konstatēts, ka pēc nelielas klostrīdiju adaptēšanas jaunajos vides apstākļos klasiskajā augšanas barotnē un vidē ar pievienotu hidrolizātu būtiski neatšķīrās šūnu augšana un fermentējamo cukuru patēriņš. Tādējādi secināts, ka optimizācijas procesā iespējams samazināt biobutanola iegūšanas izmaksas un vienkāršot tehnoloģiskos procesu.


Water Science & Technology: Water Supply | 2018

Detection of drinking water contamination event with Mahalanobis distance method, using on-line monitoring sensors and manual measurement data

Sandis Dejus; Alīna Neščerecka; G. Kurcalts; Talis Juhna


Archive | 2017

Biological stability in chlorinated drinking water distribution networks

Alīna Neščerecka


Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference | 2017

ON-LINE DRINKING WATER CONTAMINATION EVENT DETECTION METHODS

Sandis Dejus; Alīna Neščerecka; Tālis Juhna


9th Eastern European Young Water Professionals Conference | 2017

Detection of Drinking Water Contamination Event with Mahalanobis Distance Method, Using On-line Monitoring Sensors and Manual Measurements Data

Sandis Dejus; Alīna Neščerecka; Ģirts Kurcalts; Tālis Juhna


9th Eastern European Young Water Professionals Conference | 2017

Drinking Water Contamination Detection by On-line Monitoring: Pilot Scale Studies

Sandis Dejus; Alīna Neščerecka; Ģirts Kurcalts; Tālis Juhna


publication.editionName | 2016

A Pipeline for Developing and Testing Staining Protocols for Flow Cytometry, Demonstrated with SYBR Green I and Propidium Iodide Viability Staining

Alīna Neščerecka; Frederik Hammes; Tālis Juhna


publication.editionName | 2016

Behavior and Stability of Adenosine Triphosphate (ATP) during Chlorine Disinfection

Alīna Neščerecka; Tālis Juhna; Frederik Hammes


8th Eastern European Young Water Professionals Confrence | 2016

Long Term Drinking Water Quality Monitoring in Drinking Water Supply Systems by On-Line Sensors

Sandis Dejus; Rihards Rušenieks; Alīna Neščerecka; Sergejs Nazarovs; Tālis Juhna


IWA 7th Eastern European Young Water Professionals Conference | 2015

Review of Existing and Emerging Biological Contamination Detection Tools for Drinking Water Distribution Systems (DWDS) Online Monitoring

Sandis Dejus; Alīna Neščerecka; Sergejs Nazarovs; Tālis Juhna

Collaboration


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Tālis Juhna

Riga Technical University

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Sandis Dejus

Riga Technical University

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Jānis Rubulis

Riga Technical University

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Talis Juhna

Riga Technical University

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G. Kurcalts

Riga Technical University

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Linda Mezule

Riga Technical University

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Linda Mežule

Riga Technical University

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