The feasibility of using non-woven fabric as packing material for wastewater treatment

Abstract

a b s t r a c tThe present study introduces a new technique using a combined up-flow anaerobic sludge bed (UASB) followed by innovative down-flow hanging non-woven fabric (DHNW) for the treatment of domestic wastewater. The aim of this work is to develop an innovative non-woven packing material that can be used to improve the performance of both UASB and DHNW and other similar techniques for the treatment of wastewater. The packing material could be produced from waste plastic bottles, thus considerable part of solid waste can be reduced, recycled and applied in wastewater treatment plant to produce treated reusable effluent. The primary treatment was carried out using packed and classical UASB reactor (in parallel manner). The quality of the packed UASB effluent was better than that of the classical UASB reactor. Consequently, the effluent of the packed UASB reactor was fed directly to the DHNW reactor. The source of wastewater was the domestic wastewater from Zeneen's wastewater treatment station. The hydraulic residence time (HRT) of the UASB reactors was 6 h. The performance of the combined packed UASB/DHNW showed reduction of COD, BOD and TSS from 349.6, 260.6 and 171.3 to 44, 24 and 27 mg/L, respectively. The fecal coliform (FC)count was reduced by 3 log units using the combined packed UASB/DHNW system. The results indicated that polyethylene terephthalate (PET) spun-bond non-woven fabric can offer a cost effective solution as well as durable and efficient packing material for wastewater treatment.

Environmental Impact Assessment of Taza City’s Wastewater: Application through Principal Component Analysis

“…Within this framework, several new efficient and low-cost technologies with more technical, economic, and environmental advantages have been investigated for wastewater treatment and reuse, namely, the combination of the Anaerobic Ascending Sludge Bed Reactor (ASBR) technology followed by constructed wetlands either with subsurface flow or free flow [23] or combined Sequential Batch Reactor (SBR) [24]. Another new technology using a 4 Scientifica combined upflow anaerobic sludge bed followed by an innovative downflow suspended nonwoven fabric for domestic wastewater treatment has been investigated [25]. is process showed a reduction of COD, BOD, and TSS from 349.6, 260.6, and 171.3 to 44, 24, and 27 mg/L, respectively.…”

Innovative solutions for reduction of olive mill wastewater pollution

“…The ratio of air to packing materials inside the unit is about 75% to 25%, respectively. The MTF is a modification of another system provided by El-Khateeb et al, [18]. The air to packing material ratio as well as the aeration arms is chosen to enhance the passive aeration inside the unit.…”

The impact of temperature and dissolved oxygen (DO) on the partial nitrification of immobilized fillers, and application in municipal wastewater

“…The recent studies proposed the use of non- woven fabric made by waste plastic bottles as packing material for both up-ow anaerobic sludge bed (UASB) and downow hanging non-woven fabric (DHNW) reactors to treat organic matter in sewage water with a good removal effect. 42,43 The proposed packing material with low cost has a promising capacity as an efficient material that could be used for the treatment of wastewater. Therefore, choosing reusable or wasteregenerated immobilized materials can promote the application of this strategy in municipal WWTPs.…”