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Many fashion designers have pursued the principle of sustainability to provide clothes that meet consumer’s needs and aim to make the major benefits of clothing product and change the wearer’s practices in ways to wear and improve the pattern of rapid consumption of less consumption. Transformable clothing is one of the applications of sustainability in fashion design, which can be comfortably worn in multiple ways. It can be transformed into another shape and able to transform back to the original shape by altering its components. The standards of convertible fashion design are flexibility, mobility and adaptability. The standards of transformable clothes are flexibility, mobility and adaptability. Using the modular design system as one of the types of transformable clothes, more than one dress style can be obtained for one clothing product using modules that can be added or removed to the clothing design and inspired by the abstract geometric thought of Mondrian.The present research aims to create fashion designs for women in the age group (18-25 years) inspired by the abstract geometric thought of the artist Mondrian with a new vision as an application of the theory of sustainability using the modular design system, which can be obtained from more than one style to wear for basic design using remove and/or add modular units, and implement them with appropriate implementation techniques.The findings indicate that modular design allows wearers customize the garment into any possible combinations by modifying the modules, so various styles are created from the main design, thus the researchers created three proposed designs. Each design consists of the main design and numbers of modules which can be remove and/or added by using appropriate fasteners.

This study was carried out to evaluate the efficiency of mixed algal cultures for wastewater treatment. Free and alginate-immobilized forms of mixed algal culture were used. The highest removal percentages of biological oxygen demand (BOD) were 86.4% and 71.2 % after 32hrs and 48 hrs. in case of free and immobilized cells, respectively. Moreover, the highest values of chemical oxygen demand (COD) removal were 83.74% and 59.71% after 32hrs and 48 hrs for free and immobilized cells, respectively. Treatment with free cells showed removal values for total dissolved salts (TDS), phosphorus and NH3-N were 20.5%, 34.6% and 43.8% respectively after 32 hours. While in case of immobilized cells the highest removal values 18.4%, 34% and 58.5%, for TDS, Phosphorus and NH3-N, respectively were recorded after 48 hrs. Generally, concentration of heavy metals decreased due to treatment with algal free and immobilized cells. As a result of treatment with algal free and immobilized cells, 100% and 95.9% of Cu wastewater content was removed after 8 hrs and 48 hrs, respectively. Moreover, 96.2% and 98.1% of Fe was removed after 32 and 48 hours due to application of free and immobilized cells, respectively. As a result of inoculation with the mixed algal cultures in free cells 99.4% of Mn and 84.2% of Zn content were removed after 32 hours. Whereas, 98.6% of Pb content was removed after only 8 hrs. In case of using the immobilized cells the highest removal percentages of the three heavy metals recorded after 48 hours as follow 97.8% of Mn, 89.0% of Pb and 97.37% of Zn. Accordingly, treatment of wastewater with mixed algal free or immobilized cells is a fruitful method to produce an effluent of high quality to be used for irrigation. Whereas, the algal free cells were found to be more efficient than the immobilized ones.