The effect of sedimentation by chemical coagulants and the rapid sand filters on algal removal at drinking water treatment plants in Egypt

Abouzied, Adel Hussein; Hassan, Hanan A. S.

doi:10.1186/s42269-022-00754-8

Table 6 Algal species occurrence in the drinking water samples

From: The effect of sedimentation by chemical coagulants and the rapid sand filters on algal removal at drinking water treatment plants in Egypt

No	Species	Family	Phylum	Site of plants
No	Species	Family	Phylum	Atfeeh	Al-Ayat	Giza
1	Actinastrum hantzschii Lagerheim	Scenedesmaceae	Chlorophyta	−	−	+
	Ankistrodesmus acicularis var. mirabilis	Selenastraceae	Chlorophyta	−	+	+
3	Chlorella regularis Oltmanns	Chlorellaceae	Chlorophyta	+	+	+
4	Scenedesmus quadricauda Chodat	Scenedesmaceae	Chlorophyta	+	+	+
5	Sphaerocystis schroeteri Chodat	Sphaerocystidaceae	Chlorophyta	+	+	+
6	Tetraedron minimum Hansgirg	Hydrodictyaceae	Chlorophyta	−	+	+
7	Closterium acerosum Ehrenberg	Closteriaceae	Charophyta	−	−	+
8	Staurastrum paradoxum Meyen ex Ralfs	Desmidiales	Charophyta	+	+	+
9	Asterionella formosa Hassall	Fragilariophyceae	Bacillariophyta	+	+	+
10	Cocconeis placentula f. major Cleve	Cocconeidaceae	Bacillariophyta	+	−	−
11	Cyclotella catenata Bachmann	Stephanodiscaceae	Bacillariophyta	+	+	+
12	Cymbella prostrata Cleve	Cymbellaceae	Bacillariophyta	+	+	+
13	Diatoma elongata Lyngbye	Tabellariaceae	Bacillariophyta	+	+	+
14	Diatoma vulgaris var. producta Grunow	Tabellariaceae	Bacillariophyta	+	+	+
15	Navicula cuspidata var. alaskaensis Foged	Naviculaceae	Bacillariophyta	+	+	+
16	Navicula bacillum Ehrenberg	Naviculaceae	Bacillariophyta	+	+	+
17	Nitzschia closterium f. minutissima Allen & Nelson	Bacillariaceae	Bacillariophyta	+	+	+
18	Nitzschia constricta var. major Grunow	Bacillariaceae	Bacillariophyta	+	+	+
19	Navicula mutica f. cohnii Cleve	Bacillariaceae	Bacillariophyta	+	+	+
20	Nitzschia linearis var. tenuis Grunow	Bacillariaceae	Bacillariophyta	+	+	+
21	Nitzschia acicularis Kützing	Bacillariaceae	Bacillariophyta	+	+	+
22	Synedra ulna f. danica Hustedt	Fragilariaceae	Bacillariophyta	+	+	+
	Total of Bacillariophyta species			14	13	13
	Total of Chlorophyta species			3	5	6
	Total of Charophyta species			1	1	2
	Total of species			18	19	21

Absent (−) Present (+)

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