علم بڑی دولت ہے
نحمدہ ونصلی علی رسولہ الکریم امّا بعد فاعوذ بااللہ من الشیطن الرجیم
بسم اللہ الرحمن الرحیم
قُلْ ھَلْ یَسْتَوِی الَّذِیْنَ یَعْلَمُوْنَ وَالَّذِیْنَ لَا یَعْلَمُوْن۔صَدَقَ اللہ الْعَظِیْم
صاحب صدر معزز اسا تذہ کرام اور میرے ہم مکتب ساتھیو! آج مجھے جس موضوع پر تقریر کرنے کا موقع فراہم کیا گیا ہے وہ ہے:’’علم بڑی دولت ہے‘‘
صدرِذی وقار!
انسان حسن و جمال میں ایک دوسرے کے برابر ہوسکتا ہے، رنگ و روپ میں ایک دوسرے کے برابرہوسکتا ہے۔ قد کاٹھ میں ایک دوسرے کے برابر ہو سکتا ہے، گفتار ورفتار میں ایک دوسرے کی برابری کر سکتا ہے تحریرو تقریر میں یکسانیت کا امکان ہے، مال و دولت میں ہم پلہ ہوسکتا ہے، سونے چاندی کے ڈھیر کے پیما نے برابر ہو سکتے ہیں، قوت وسطوت میں برابری ہوسکتی ہے لیکن علم ایک ایسی دولت ہے جس میں جاہل اور عالم برابر نہیں ہو سکتے جس کے ترازوکا پلڑاعلم کے وزن سے بھاری ہو جاتا ہے پھر دنیا کی کوئی شے اس کا مقابلہ نہیں کر سکتی اس کے پلڑے کو اُوپر اٹھانا تو در کنار اس کی برابری کا تصور تک نہیں کر سکتا۔
معزز سامعین!
یہ صرف میں نہیں کہہ رہا کہ علم بڑی دولت ہے، بلکہ تاریخ اسلام کی نامور ہستیوں نے کہا۔ صالحین نے کہا کہ علم بڑی دولت ہے، متقین نے کہا کہ علم بڑی دولت ہے، اولیاء نے کہا کہ علم بڑی دولت ہے، ابدال نے کہا کہ علم بڑی دولت ہے، قطب نے کہا کہ علم بڑی دولت ہے، غوث نے ہزاروں کے مجمعے میں پیغامِ تو حید پہنچا کر کہا کہ علم بڑی دولت ہے،حضرت بلال ص نے اپنے آپ کوتپتی ر یت پر لٹا کر کہا کہ علم بڑی دولت ہے، خبیبص نے خود کوسولی پر چڑھا کر کہا کہ علم بڑی دولت...
The Internal dissensions within the ranks of the Muslim Ummah are very harmful and condemnable. Today, the Muslims of the world have fallen into the deep recesses of decline due to their mutual differences. The intrigues and conspiracies of the hostile nations have created schism and dissensions among the Muslims on the grounds of language, land, race and color. In our country (Pakistan), if we ponder on the growing rate of violence, we will find that the main causes of this chaos are our attitude towards our mutual differences. Because of intolerant approach towards our mutual differnces, our difficulties and problems are sizing up, and they have engulfed the whole nation, now. The only point on which our nation can be united is the “Kalimah”. The followers of this “Kalimah” whether they are white or black, rich or poor, or whatever race they belong to, and whatever territory or country they come from, they are all considered as the member of the Muslim Ummah. Keeping the prevailing situation of the Muslim Ummah, the author of this paper feelss that an appropriate answer to the question, ‘are all sorts of differences condemnable?’, is key to end most of our differences. In fact, all sorts of differences are not condemnable or forbidden; if differences of opinions are based on some logical grounds within the jurisdiction of the Qur’ān and Aḥādīth, they are permissible and justified as inevitable and natural. Such kind of approach can promote tolerance and unity among the Muslim Ummah and can put us at peace.
Tanning industry in Pakistan has shown rapid growth in last few decades. However, environmental regulations are not strictly followed regarding the processing as well as discharge of effluents. Tannery wastewater and sludge have become a major source of water and soil pollution. This research study was designed to appraise the harmful impacts of untreated tannery wastewater along with proper management of sludge by utilizing green technologies. In this study, management of tannery sludge was done by utilizing environment friendly practices in four experimental phases. In first phase, the impacts of tannery wastewater on soil and selected plants were studied in comparison with a control group. Characterization of tannery wastewater showed that values of parameters like pH, biological oxygen demand, chemical oxygen demand, sulphate and chloride were higher as compared to National environmental quality standard. The concentration of Cr, Zn, Mn, Fe, Cu, Na, and K were higher in soil and plants (D. sanguinalis, S. cumini and E. camaldulensis) samples irrigated with tannery wastewater as compared to fresh water samples. It is concluded that the untreated tannery wastewater is not suitable for irrigation purpose. Hence, proper treatment of tannery wastewater is required before its usage for irrigation purpose. Biogas production through anaerobic co-digestion of waste activated tannery sludge (WATS) with biomasses (rice husk, cow dung and sewerage sludge) as co-substrates was investigated in second phase. The initial results of waste activated tannery sludge were best as compared to primary lagoon sludge, secondary lagoon sludge and tannery solid waste collected from Kasur tannery treatment plant. The waste activated tannery sludge was used in biogas experiments as co-substrate. Different proportions of waste activated tannery sludge and cow dung were used for biogas production. The cumulative biogas production in WATS (waste activated tannery sludge 100 %) was found 80 mL (0.10 mL/g TVS), WATSCD-1 (WATS 70 % and cow dung 30 %) that is 158 mL (0.20 mL/g TVS) and WATSCD-2 (WATS 50 % and cow dung 50 %) sample 195 mL (0.24 mL/g TVS). The overall results of WATSCD-2 combination were best. To optimize biogas production ultrasonic and chemical pre-treatment were applied through series of experiments on different combination of WATSCD-2. Seven combinations of WATSCD-2 with sewerage sludge and rice husk were ii prepared and designated as CDCT-1 to CDCT-7, treated chemically. Similarly, seven proportions CDUT-1 to CDUT-7 were treated ultrasonically. Biogas production results of ultrasonically treated sludge combinations (CDUT-1 to CDUT-7) were better as compared to chemically treated sludge combinations (CDCT-1 to CDCT-7). The optimum results were obtained in ultrasonically treated combination CDUT-7 (202 mL, 9.25 mL/g TVS) as it contains maximum biomass concentration as compared to CDUT-1 to CDUT-6. In third phase, series of experiments were conducted to optimize the parameters like sulfur, ash and gross heating value (GHV) by preparing different sludge combinations with biomasses. These combinations were prepared by using primary sludge, secondary sludge and WATSCD-2 with coal and rice husk on weight percent basis. The higher GHV results were found in WATSCD-2 combinations as compared to both primary and secondary sludge combinations. The WATSC-2 combination (WATSCD-2 50 % and coal 50 %) have lower sulfur and ash contents along with high GHV as compared to primary and secondary sludge combinations. So, this combination has better potential to use as refuse derived fuel for energy recovery. The statistical analysis (one-way ANOVA) was found significant for ash, sulfur and GHV for different sludge combinations with p < 0.05. It is concluded that sludge is a very valuable fuel like traditional biomass. However, efforts should be exercised to overcome the problem of drying and emissions from sludge. In last phase, compost was prepared from different combinations of WATSCD-2 with different co-substrates. These combinations were designated as WATSCD-SR (mixture of WATSCD-2, sewerage sludge and rice husk), WATSCD-RL (mixture of WATSCD-2, rice husk and leaves), WATSCD-SL (mixture of WATSCD-2, sewerage sludge and leaves) at laboratory scale by using 1:1:1 ratio of each component. The WATS-RL combination showed better results of nitrogen (2.9 ± 0.38 %), phosphorous (0.038 ± 0.01 %), potassium (0.07 ± 0.01 %), organic matter (57.55 ± 6.35 %) and C/N ratio (18.05 ± 1.93) as compared to WATS-SR and WATS-SL. Environmental regulations are getting more restricted related to landfilling of biodegradable waste. The solution of these problems is to use of biodegradable portion for biogas production and residual tannery sludge as bio-solid (composting) or thermal utilization for energy recovery.