Abstract
The study aimed to investigate how managing the growing water demand and wastewater production by treating and reclaiming Water from the Wastewater in Delta State. Mainly to carry out a comparative feasibility study and develop a decision support system (DSS) or strategy/planning framework for a sustainable alternative for water/wastewater treatment and management in oil & gas industries, Water, wastewater industries and authorities in Delta State. Data was collected using a mixed approach. Primary data was collected using semi-structured interviews and closed-ended questionnaire survey. Descriptive analysis was applied in analysing the questionnaires, and thematic analysis was used in analysing the interviews. It was concluded that a centralised system is required to collect rainwater and wastewater, and recycle Water in Delta state for reuse, and reduce dependence on freshwater. It will be an improvement to the direct collection of wastewater from individual houses by private waste management organisations that drain the sewage systems. It was found that causes of water and wastewater problems in Delta State, Nigeria include: government regulation; financial problem; lack of sufficient land for development; pollution; high population; using potable Water for non-potable use; water shortage; poor technology; lack of people’s awareness on water, and poor maintenance. Based on this, grey water reuse, decentralised system of water reclamation and education and awareness of wastewater management were recommended to solve the water and wastewater problems found in the state. Microscale solutions such as ponds, permeable pavements, rain gardens, rainwater harvesting systems, wetlands, and green roofs were recommended. In addition to the recommendations, a strategic framework/decision support system for sustainable alternatives for oil, gas, water and wastewater industries and authorities was developed.
Highlights
According to Angelakis and Snyder (2015), wastewater treatment and management had been in existence before the categorisation of causes of wastewater
This study aims to develop a strategy/policy framework or decision support system (DSS) through investigating how managing the growing water demand and wastewater production by treating and reclaiming Water from the Wastewater in Delta State
According to INTWWM1, considering that some of the residents get their water for domestic use and farming from the rivers and streams, they are affected by oil and gas activities
Summary
According to Angelakis and Snyder (2015), wastewater treatment and management had been in existence before the categorisation of causes of wastewater. Due to oil and gas production activities in the Delta State of Nigeria, oil spillages, among other problems affecting groundwater is inevitable (Onojake 2012). For this reason, a sustainable alternative to the current wastewater treatment and management in the Delta State is an essential subject to research for implementation. Wastewater is collected in Asaba and its environs through a centralised facility, designed with wastewater treatment (Izonfuo et al 2013) This facility is characterised by inefficient wastewater collection and improper waste management method, leading to water shortage, and inadequate treatment of wastewater for reuse (Omenka 2010). This research focuses on investigating how the wastewater is treated and to propose a sustainable alternative method
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