Treated Waste Water

Wastewater treatment removes contaminants from wastewater and converts it into an effluent that can be returned to the water cycle. Treated Wastewater is largely used in the Agriculture and Industrial sectors. The Kingdom of Bahrain has 11 wastewater treatment plants that are owned and operated by the Ministry of Works, Municipalities Affairs and Urban Planning. Bahrain also has a two pronged policy with regards to Wastewater Treatment: expanding and upgrading the current wastewater treatment plants and implementing a wastewater decentralization scheme for newly developed settlements.

Population connected to
wastewater collecting system
Wastewater
Generation and Treatment
Treated Sewage
Effluent

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Serial	Year	Population Connected to a Wastewater Collection System	Population With Independent Wastewater Treatment (e.g. Septic Tanks)
1	2007	0.66	0.34
2	2008	0.65	0.35
3	2009	0.77	0.23
4	2010	0.81	0.19
5	2011	0.88	0.12
6	2012	0.87	0.13
7	2013	0.87	0.13
8	2014	0.9	0.1
9	2015	0.88	0.12
10	2016	0.85	0.15
11	2017	0.81	0.19
12	2018	0.83	0.17
13	2019	0.82	0.18
14	2020	0.81	0.19
15	2021	0.81	0.19

Observations and Analysis

This section is under construction

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Serial	Category	Unit	2021	2020	2019	2018	2017	2016	2015	2014	2013	2012	2011	2010	2009	2008	2007
1	Total wastewater generated by:	1000 m3/d	464.5	465.9	430.8	437.1	428.1	433.6	426.1	432.6	365.7	344.5	321.9	316.7	302.1	272.9	240.2
1.1	Households	1000 m3/d	447.2	447.8	441.4	415.8	413.3	407.1	399.9	408.1	363.8	344	321.4	316.7	301.6	272.4	239.7
1.2	Agriculture, forestry and fishing ISIC (01-03)	1000 m3/d	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
1.3	Manufacturing (ISIC 10-33)	1000 m3/d	1.2	1.5	1.5	1.6	1.9	1.5	2	2.1	0.5	0.5	0.5	0.5	0.5	0.5	0.5
1.4	Mining and Quarrying (ISIC 05-09)	1000 m3/d	15	15.5	16.7	18.6	19	23.3	22.8	21.2	0	0	0	0	0	0	0
1.5	Electricity industry (ISIC 351)	1000 m3/d	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
1.6	Other economic activities	1000 m3/d	1.1	1.1	1.2	1.1	1.3	1.6	1.4	1.2	1.4	0	0	0	0	0	0
2	Volume of wastewater collected	1000 m3/d	464.5	465.9	430.8	437.1	435.7	433.6	426.1	432.6	365.7	344.5	321.9	316.7	302.1	272.9	240.2
3	Volume of wastewater treated	1000 m3/d	464.3	465.5	430.4	437	435.2	427.2	420.3	428.8	341.4	321.1	321.8	316.7	302.1	272.8	240.1
4	Wastewater treated in urban wastewater treatment plants Of which:	1000 m3/d	447.2	447.7	411.3	445.8	413.5	405.2	399.9	407.9	339.8	320.69	321.3	316.2	301.6	272.3	239.6
4.1	Primary treatment	1000 m3/d	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
4.2	Secondary treatment	1000 m3/d	210.5	233.2	218.7	225.3	205.2	198.2	211.7	218.6	221	191.4	190.7	178.9	160	136.6	132.7
4.3	Tertiary treatment	1000 m3/d	236.7	214.5	192.6	190.5	208.3	209	188.2	189.3	118.8	129.2	130.6	137.3	141.6	135.7	106.9
5	Wastewater treated in other treatment plants Of which:	1000 m3/d	17.1	17.8	19.1	21.2	21.7	20	20.4	20.9	1.6	0.5	0.5	0.5	0.5	0.5	0.5
5.1	Primary treatment	1000 m3/d	8.7	8.4	7.9	9	7.4	0	0	0	0	0	0	0	0	0	0
5.2	Secondary treatment	1000 m3/d	6.9	7.9	9.6	10.6	12.6	18.3	18.9	19.6	0.1	0.03	0.03	0.03	0.03	0.03	0.03
5.3	Tertiary treatment	1000 m3/d	1.5	1.5	1.6	1.6	1.7	1.7	1.5	1.3	1.5	0.47	0.47	0.47	0.47	0.47	0.47
6	Sewage sludge production (dry matter)	1000 m3/d	5.3	4.7	4.6	4.4	5.2	4.7	6.2	5.3	5.6	5.7	5.8	5.9	0	0	0