Official Course Description: MCCCD Approval: 07/22/08
CHM135 19986-20086	L+L	4 Credit(s)	6 Period(s)
BIOLOGICAL CHEMISTRY FOR WATER STUDIES
Elements of general chemistry and biology adapted to the needs of students in water purification and hydrologic studies. Prerequisites: Grade of C or better in MAT122 or satisfactory score on placement exam.

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MCCCD Official Course Competencies:
CHM135   19986-20086	BIOLOGICAL CHEMISTRY FOR WATER STUDIES

1.	Define chemistry and describe its main branches. (I)
2.	Classify matter as elements, compounds, solution, suspension, colloid. (I)
3.	Describe the structure of chemical compounds (II)
4.	Use the periodic table to estimate the properties of elements and compounds. (II)
5.	Name and write formulas for simple chemical compounds. (II)
6.	Describe the formation of ionic and covalent bonds. (II)
7.	Explain conductivity and resistivity. (II)
8.	Classify substances as acids, bases, and salts. (II)
9.	Define and describe redox reactions. (II)
10.	Describe the sources of water and prevalent contaminants found in them (III)
11.	Explain the unique properties of water including hydrogen bonding. (III)
12.	Describe the stages in the water treatment process. (IV)
13.	Solve dosage problems for the treatment of water. (IV)
14.	Describe the structure of specific organic compounds. (V)
15.	List the main sources of organic material. (V)
16.	Define osmosis and reverse osmosis. (VI)
17.	Explain the ion exchange theory. (VI)
18.	List the types microorganisms found in water. (VII)
19.	Describe bacteria growth, disinfection and monitoring in water. (VII)

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MCCCD Official Course Outline:
CHM135   19986-20086	BIOLOGICAL CHEMISTRY FOR WATER STUDIES

I. Chemistry A. Definition of chemistry B. Branches of chemistry C. Matter D. Structure of matter 1. elements, and compounds 2. atoms and molecules 3 categories of particles 4. atomic structure 5. fundamental particles 6. the mole 7. molecular weight/molar mass E. Classification of matter 1. periodic table 2. solutions, suspensions, and colloids II. Structure of Chemical Compounds A. Chemical bonding 1. covalent and ionic bonding 2. ions, molecules, and formula units 3. valence 4. dissociation of ions 5. water chemistry 6. polarity 7. conductivity/resistivity B. Chemical reactions 1. chemical formulas 2. types of chemical reactions C. Acids, bases, and salts 1. pH and alkalinity 2. salt formation including insoluble salts D. Oxidation and reduction III. Water A. Sources 1. surface and ground 2. contaminants B. Properties 1. hydrogen bonding 2. physical properties IV. Treatment Processes A. Types of processes 1. removal processes 2. softening processes 3. chlorination processes 4. control processes 5. recarbonation processes 6. coagulation processes B. Dosage problems 1. mass/volume, percent, mass/time 2. feed rate conversions 3. chlorine dosage, demand, and residual 4. fluoridation 5. lime-soda ash softening 6. ion exchange softening V. Organic Compounds A. Structure of organic compounds 1. functional groups 2. solubility of organic compounds 3. organics and biofouling 4. tannins and humic substances 5. silicates and silica B. Sources of organic material 1. forms in which found in water 2. measurement in water VI. Osmosis and Reverse Osmosis A. Osmotic pressure 1. applied pressure 2. net driving pressure B. Reverse osmosis 1. ro units 2. types of membranes C. Ion exchange theory VII. Microorganisms in Water A. Algae B. Fungi C. Protozoa D. Bacteria 1. sizes 2. shapes 3. slime production – self protecting 4. growth rates in replication methods E. Disinfection F. Kill ratios of biocides G. Determination of bacteria in water H. Culturing I Direct counting methods J. Epi-fluorescence K. Scanning electron microscope

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