The water pollution is one of the environmental problems due to the bioaccumulation tendency of toxic materials. The purpose of present study was to treat wastewater through bioprocesses, in combination with nanofiltration (NF) as a post treatment process to remove heavy metals (Cu(II) & Pb(II)), and reactive dyes (Drimarine Yellow HF-3GL & Drimarine Black CL-B) from aqueous solutions. The bioprocesses were conducted in batch and column mode. The biosorption characteristics of immobilized heat inactivated hybrid biosorbent (HI HB) and Active hybrid biosorbent (Active HB) for metal ions and dyes removal were assessed as function of biomass dosage, contact time, pH, initial dye/metal ion concentration and temperature. Maximum uptake of Cu(II), Pb(II), Drimarine Black CL-B & Drimarine Yellow HF-3GL was 213.53, 365.90, 14.57 and 7.82 mg/g at pH 5, 4.5, 3 & 3, respectively, by immobilized HI HB. The biosorption capacity did not increase with increase in biomass dosage. Langmuir isotherm described well the biosorption process. The kinetic data fitted well to pseudo-first and pseudo-second-order kinetic models. Thermodynamic study illustrate that process was feasible at low temperature. Removal of Cu(II), Pb(II), Drimarine Yellow HF-3GL & Drimarine Black CL-B with immobilized Active HB was also explored as a function of pH, biomass dosage, initial dye/metal ion concentration, contact time and temperature. The results demonstrated that all studied parameters influenced the process. Increase in initial dye/metal ions concentration and bed height was found to be favorable conditions for maximum dye/metal ions removal in column mode study. Characterization of biosorbent was carried out by FTIR, SEM, TEM, XRD and TGA analysis. FTIR analysis of biomass showed participation of –OH, and –COOH as major functional groups involved in sequestering of metal ions and dyes from aqueous solution. Furthermore, NF increased the % removal of studied metal ions and dyes. The study provides understanding on treating wastewater through adsorption in combination with NF for Cu(II), Pb(II), Drimarine Yellow HF-3GL & Drimarine Black CL-B removal.
جعفری، سید علی سردار اردو کا سردار چلا گیا مدت سے اردو کا گلشن صیادوں اور گل چینوں کے نرغے میں ہے، بادِ حوادث بھی اس میں خاک اڑا کر اسے ویرانے میں تبدیل کرنے کے درپے ہے، اردو کے پرانے بادہ کش اٹھتے جارہے ہیں۔ ابھی مجروح ۱ سلطان پوری کے غم میں آنسو تھمے نہیں تھے کہ یکم اگست کو اردو کا بہت ممتاز اور قدر آور شخص بین الاقوامی شہرت کا حامل انقلابی شاعر، وسیع النظر ادیب و نقاد، اچھا مقرر و خطیب اور ترقی پسند تحریک کا میرکارواں، سید علی سردار جعفری بھی چل بسا۔ جس کے جانے سے اردو کی دلکش اور رنگارنگ گنگاجمنی تہذیب کا خاتمہ ہوگیا اور اردو دنیا میں ویرانی اور تاریکی چھاگئی، اردو والے بے قرار ہوکر کہہ رہے ہیں: اس غم کی تلافی کیا ہوگی ، اس درد کا درماں کیا ہوگا جناب سید علی سردار جعفری کے بزرگ ریاست بلرام پور میں اونچے عہدوں پر فائز تھے۔ اس لئے ان کا خاندان آگرہ سے بلرام پور چلا آیاتھا۔ یہیں نومبر ۱۹۱۳ء میں سردار کی ولادت ہوئی اور اعلیٰ تعلیم علی گڑھ مسلم یونیورسٹی میں ہوئی، وہ طلبہ کے لیڈر بھی رہے اس وقت ملک میں قومی اور سیاسی سرگرمیاں عروج پر تھیں، ہر طرف سرفروشان وطن نے انگریزوں کے خلاف پرچم بغاوت بلند کر رکھا تھا اور پورا ملک انقلاب کے نعروں اور آزادی کے ترانوں سے گونج رہا تھا۔ سردار بھی اقبال سہیل کا یہ رجز پڑھتے ہوئے، آزادی کے دیوانوں کے لشکر میں جاملے۔ قید غلامی و حیات ننگ ہے، ننگ کائنات
Mلعنتِ بندگی کے ساتھ صووت زندگی نہ دیکھ Mپھاڑ کے جیب و آستیں کر علمِ جنوں بلند
Gعشق کے میرکارواں پرچم خسروی نہ دیکھ ~ ابتدا ہی سے وہ مارکس کے خیالات سے متاثر تھے...
Wilfrid Scawen Blunt, like many aristocratic Englishmen in the age of Empire in the late 19th century, took an interest in the Muslim populations of the colonies being governed by Britain. As a prolific writer and poet, his approach differs from his contemporaries in being, on the whole, genuinely sympathetic to Islam. In his book ‘The Future of Islam’ he shows how important the power of Islam in coming centuries is likely to be, and touches upon many important topics, such as the growing spread of Islam in the world and possible adjustments to the Caliphate. He would like to see the formation of a friendly association between Great Britain and the Muslims of the world in the political interests of Britain. Inevitably, many of his predictions and wishes did not materialize in the 20th century. Wilfred Scawen Blunt [1840-1922] was an English gentleman who followed the leisurely pursuits available to affluent members of Victorian society, i.e, travelling and poetry. His travels in the Middle East made a powerful impression on his intellectual and emotional sensibilities. As E.M. Forster wrote in his essay on Blunt, he ‘was drawn to Islam, and at one time thought of professing it.’1 He was, no doubt, in sympathy with the subjugated peoples of the Middle East and with the Indians of South Asia who were groaning under the colonial yoke. Further in the essay, Forster writes, ‘Egyptians found him too proTurkish and Indians too anti-British.’2 This attitude was unique for a stolid Englishman of the time of the ‘highnoon of Empire’. Blunt feared the advance of European powers in Oriental lands. Forster further writes: ‘His detachment is amazing. He dreaded a war because it must involve Asia and Africa, and complete the enslavement of the conservative Oriental nations, whom he loved and who loved him……
Environmental stresses are among the most limiting factors to plant productivity. Among these, salinity is one of the biggest problems of Pakistan due to its arid to semi-arid climate. A rapid increase in demand for food due to increasing population, there is need to have salt tolerant crop genotypes in saline land for proper cultivation to meet this increasing demand. To investigate the effect of salinity on plant morphological, physiological and biochemical attributes and role of potassium in alleviating harmful effects of salinity in maize hybrids, two solution culture and one pot experiment were conducted. Initially, 9 maize hybrids were grown for four weeks in solution culture using three salinity levels (control, 50 and 100 mM NaCl). On the basis of biomass accumulation and K+/Na+ ratio, maize hybrids (26204, Hysun 33) and (8441, 33H25) emerged as salt tolerant and salt sensitive respectively. Subsequently, physiology and biochemistry of salt tolerant and salt sensitive maize hybrids were evaluated in solution culture and pot experiment under various levels of potassium and salinity. Results revealed that plant growth, RWC, MSI, chlorophyll contents and photosynthetic parameters of all maize hybrids decreased under salinity stress. But salt tolerant maize hybrids show significantly better plant growth relative to salt sensitive maize hybrids. Addition of potassium significantly alleviates the harmful effects of salinity by improving plant morphological, physiological attributes and enhancing antioxidant enzymes activities. The beneficial effects of potassium were more pronounced in salt tolerant maize hybrids than salt sensitive maize hybrids. Furthermore, salt tolerant and salt sensitive maize hybrids were grown in solution culture under salinity and heavy metal (Cd) stress. The results confirmed that salt tolerant maize hybrid 26204 is also Cd stress tolerant by showing better growth under both stress condition relative to maize hybrid 8441. Keyword: maize hybrid, salinity, potassium, antioxidant enzymes