Effectiveness of coagulationflocculation process for the removal of chemical oxygen demand (cod), color and suspended solid in industrial wastewater treatment
Kehadiran air kumbahan lateks di dalam alam sekitar memberi negatif kepada kualiti air dengan menyebabkan banyak permasalahan seperti warna, bau dan sebagainya. Selain itu, ia boleh mendatangkan kesan buruk kepada masyarakat dan penduduk hidupan liar kerana air adalah salah satu sumber yang penting sebahagian daripada kehidupan. Oleh itu, penting untuk merawat air kumbahan sebelum melepaskan air permukaan. Proses pengentalan dan pemberbukuan telah dijalankan untuk memaksimumkan penyingkiran COD, pepejal terampai dan warna dengan menggunakan aluminium dan ferik klorida sebagai bahan pengental. Parameter lain juga termasuk dalam kajian ini seperti kekeruhan, BOD dan UV254mm untuk pengumpulan data yang lebih banyak. Untuk sampel air sisa purata, pengentalan proses dengan menggunakan alum dan pH 6 menunjukkan peratusan tertinggi penyingkiran warna dan pepejal terampai dengan 96.35% dan 99.45% pada dos optimum 80 mg / L. Walau bagaimanapun, untuk penyingkiran COD menunjukkan sedikit peratusan penyingkiran, iaitu 33.05%. Pengentalan dengan menggunakan ferik klorida berserta pH 6.0 menunjukkan penyingkiran warna yang paling tinggi dan pepejal terampai dengan 99.25% dan 99.5% pada dos optimum 300 mg / L. Walau bagaimanapun, penyingkiran COD hanya 37.75%. Ia boleh menyatakan bahawa, proses pengentalan / pemberbukuan tidak memperbaiki penyingkiran COD dalam air sisa. Oleh itu, ia memerlukan lebih banyak rawatan. Untuk kajian ini, dapat disimpulkan bahawa penggunaan ferik klorida adalah lebih baik dalam penyingkiran warna dan pepejal terampai berbanding alum.
_______________________________________________________________________________________________________
The presence of latex wastewater in the environment gave negatives impact on the water quality by causing many such a problems such as colour, odour and etc. Other than that, it can bring harmful effect to society and wild life population because water is one of essential part of life. Therefore, it is important to treat wastewater before releasing into the surface water. For this study, coagulation and flocculation process had been conduct to maximize the removal of COD, suspended solid and colour using aluminium and ferric chloride as coagulant. Other parameters are also included in this study such as turbidity, BOD and UV254mm for more data collection. For average sample of wastewater, coagulation using alum with pH 6 showed the highest percentage of removal of colour and suspended solid with 96.35% and 99.45% at optimum dose of 80 mg/L. However, for COD removal show little percentage a removal, which is 33.05 %. Coagulation using ferric chloride with pH 6.0 showed the highest removal of colour and suspended solid with 99.25% and 99.5% at optimum dose of 300 mg/L. However, the COD removal only 37.75%. It can be state that, coagulation / flocculation did not improve the removal of COD in wastewater. Thus, it requires more treatment. For this study, it can be conclude that the use of ferric chloride was better in removing colour and suspended solid compared to alum.
Effectiveness of coagulationflocculation process for the removal of chemical oxygen demand (cod), color and suspended solid in industrial wastewater treatment
Effectiveness of coagulationflocculation process for the removal of chemical oxygen demand (cod), color and suspended solid in industrial wastewater treatment / Nur Amira Nadia Damanhuri