2022-06

International Conference on Global Practice of Multidiciplinary Scientific Studies Dedicatedto the 100th Anniversary of "Georgian Technical University - GTU (17) (PDF) Mustafa Ismail Umer, Najlaa Mohammad Ali Qaseem, Musher Rashed Ahmed AL-Barwary. Available from: https://www.researchgate.net/publication/371274366_Mustafa_Ismail_Umer_Najlaa_Mohammad_Ali_Qaseem_Musher_Rashed_Ahmed_AL-Barwary [accessed Nov 27 2023].

The main objective of this research was to evaluate the different organic residue available in local area in Duhok province in Iraqi Kurdistan region for making four different hot compost during 18 days and evaluating some there physical and chemical quality indices. Result revealed that the first heap that formed from wheat hey and straw, sheep manure, brown garden residue, chicken manure, fruit and vegetable scrapes, contains significantly the lowest value of soluble calcium 6.46± 0.29 to 6.93±0.48 meq/l and potassium 4.39± 0.04 to 5.87± 0.03 meq/l, while has the same contents of soluble magnesium and sodium meq/l and the lowest EC values. The second heaps that formed from brown grass clipping, fish meal, pine needle, green grass clipping, vegetable and fruits scrapes is better than first heaps for their Ca and K content but have the highest value EC of 2.66± 0.02 ds.m-1. The third heap which formed from carton board and papers, slaughter waste, saw dust, brown garden residue, vegetable and fruit scrapes and forth heap which is a mixture of three above mentioned heaps in sequential are supreme significantly in their content of almost studied parameters. The lowest value of organic matter was observed in first heaps of 30.77±0.8%, while the highest value was recorded in forth heaps of 64.36±5.43%.the total nitrogen was obtained in third hep of 3.16±0.25%. the P range in all heaps are in allowable ranges, the fourth heap being the supreme on its total P contents, then second heap and ranges between 0.47±0.02 to 0.85±0.02. The C/N ratio varies from 10.45±1.6 in third heap to 25.65±1 in first heap. The bulk density ranges between 200±5- 470±10 kg.m-3of and the bulk density of third compost heap is significantly lower than the fourth heap which is significantly lower than first and second heaps. The porosity of various constructed heaps ranges between 59.20±0.7 to 68.29±0.86%. The final texture of finished matured compost by hot composting during 18 days is so fine to be considered as soil conditioner that improve almost soil chemical, physical, and biological properties of soil. So, it concludes that the third and fourth heaps are better than first and second heaps of all studied parameters.

2019-09

2nd International Conference on Advanced Science and Engineering (ICOASE 2019)

Drinking water samples were taken from 18 villages around Zakho district, Kurdistan region, Iraq in annual seasons of 2018 year and chemical analysis of most important water quality parameters were carried out. Water temperature is varied about 13.2◦C to 18.7◦C, four villages have slight acidic water while other 15 locations are tend to be slight alkaline and highest pH value reaches 8.4, electrical conductivity (µs/cm) is over the permissible values of standard drinking water in two villages and high in 4 location while normal in the rest 13 locations, statistical analysis of dissolved oxygen ranges between 6.73 - 8.40 mg/l, statistical analysis of total hardness revealed that the all villages around Zakho district have hard to intensive hard water over 500 mg/l and gives them a slight bitter taste, calcium hardness gives extremely ranges between 72-392 mg/l, and Mg hardness between 39-250 mg/l, statistical analysis of chloride shows is around 250 mg/l which is typical standard for drinking water, SO4 is low and their means located between 18-58 mg/l and NO3 not exceeded 5 mg/l along year months reflecting their purity from pollution. The content of heavy metals Cd, Cu, Mn, Zn, Fe, Ag, Ni, Cr ,Co, are below maximum permissible WHO guidelines and save for drinking while lead is over WHO permissible levels in this rank Mala> Jajoe >Easlam> Bntate> Banee villages and considered a dangerous indicators for drinking water quality in these villages.

2018-08

International Conference on Advanced Science and Engineering (ICOASE 2018) IConMEAS 2018

This study evaluates the physical and chemical characteristics of well water in Zakho district, Duhok governorate. Standard field and laboratory methods were followed. In order to characterize ground water quality in Zakho district, eight wells were selected to represent their water quality. Monthly samples were collected from the wells for the period from October 2016 to April 2017. The samples were tested for electrical conductivity (EC), total alkalinity (TA), total dissolved solids (TDS), pH, Nitrate (NO3-), total hardness (TH) and chlorides, according to the standard methods (American Public Health Association. The results of statistical analysis showed significant difference among the wells water quality in the measured parameters. Ground water of Zakho district have high dissolved ions due to the dissolved rocks of the study area. Total dissolved solids of more than 1000 mg/l made the wells Frawla, Kealk and Zarek need to be treated to made taste palatable. Additionally high electrical conductivity and TDS made Zakho ground water have a slight to moderate restriction to crop growth. The high alkalinity of Zakho ground water indicated stabilized PH . The water quality of all the wells were found excessively hard. The nitrate concentration of Zakho well water ranged between 0.19 to 42.4 mg/l below the guidelines for.